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SDF - SEA

$173 Find Cheap Flights from Louisville to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Seattle departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Seattle.
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Cheap Flight Deals from Louisville to Seattle (SDF-SEA)

 
These are the cheapest deals for flights from Louisville to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Louisville to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Louisville to Seattle.

Recent one-way flight deals from Louisville to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Louisville to Seattle found on KAYAK recently.

Recent last minute flight deals from Louisville to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Louisville to Seattle.

Recent direct flight deals from Louisville to Seattle

The latest deals for direct flights from Louisville to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Louisville to Seattle

Find recent round-trip train or bus tickets from Louisville to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:10 am - 5:56 pmSDF-SEA
10h 46m1 stop
6:00 am - 3:39 pmSEA-SDF
6h 39m1 stop
$346Delta
Find Deal
Wed, Feb 19 - Wed, Feb 26
4:39 pm - 8:47 pmSDF-SEA
7h 08m1 stop
6:15 am - 3:59 pmSEA-SDF
6h 44m1 stop
$356Delta
Find Deal
Thu, Jan 9 - Tue, Jan 14
12:19 pm - 7:00 pmSDF-SEA
9h 41m1 stop
9:45 am - 9:54 pmSEA-SDF
9h 09m1 stop
$361American Airlines
Find Deal
Fri, Jan 10 - Sat, Jan 11
5:50 pm - 10:53 pmSDF-SEA
8h 03m1 stop
7:00 am - 10:00 pmSEA-SDF
12h 00m2 stops
$371United Airlines
Find Deal
Fri, Jan 10 - Sat, Jan 11
6:50 pm - 11:15 pmSDF-SEA
7h 25m1 stop
12:15 am - 11:00 amSEA-SDF
7h 45m1 stop
$397American Airlines
Find Deal
Fri, Dec 6 - Sat, Dec 7
7:35 pm - 12:14 amSDF-SEA
31h 39m2 stops
5:55 pm - 6:40 pmSEA-SDF
21h 45m3 stops
$400Spirit Airlines
Find Deal
Thu, Jan 9 - Wed, Jan 15
7:00 am - 12:08 pmSDF-SEA
8h 08m1 stop
6:25 am - 10:26 pmSEA-SDF
13h 01m2 stops
$425United Airlines
Find Deal
Wed, Dec 11 - Sun, Dec 15
9:53 pm - 12:10 amSDF-SEA
29h 17m3 stops
12:50 pm - 8:58 pmSEA-SDF
29h 08m3 stops
$433Spirit Airlines
Find Deal
Fri, Dec 6 - Sun, Dec 8
6:40 am - 12:43 pmSDF-SEA
9h 03m1 stop
8:55 am - 8:14 pmSEA-SDF
8h 19m1 stop
$561Alaska Airlines
Find Deal
Sun, Feb 23 - Wed, Feb 26
6:40 am - 12:43 pmSDF-SEA
9h 03m1 stop
7:00 am - 9:08 pmSEA-SDF
11h 08m2 stops
$596Alaska Airlines
Find Deal
Sun, Feb 23 - Mon, Feb 24
1:51 pm - 7:51 pmSDF-SEA
9h 00m1 stop
$173American Airlines
Find Deal
Sat, Dec 7
7:35 pm - 12:14 amSDF-SEA
31h 39m2 stops
$176Spirit Airlines
Find Deal
Fri, Jan 10
1:55 pm - 7:51 pmSDF-SEA
8h 56m1 stop
$178American Airlines
Find Deal
Tue, Dec 10
7:05 am - 2:56 pmSDF-SEA
10h 51m1 stop
$183American Airlines
Find Deal
Fri, Jan 10
6:16 pm - 11:09 pmSDF-SEA
7h 53m1 stop
$203American Airlines
Find Deal
Mon, Mar 3
10:09 am - 9:09 pmSDF-SEA
14h 00m2 stops
$223United Airlines
Find Deal
Sat, Dec 7
10:05 am - 10:00 pmSDF-SEA
14h 55m2 stops
$233United Airlines
Find Deal
Mon, Mar 3
7:20 am - 2:20 pmSDF-SEA
10h 00m1 stop
$273Delta
Find Deal
Fri, Mar 7
11:04 am - 4:40 pmSDF-SEA
8h 36m1 stop
$369Alaska Airlines
Find Deal
Wed, Dec 4
3:40 pm - 12:50 amSDF-SEA
12h 10m2 stops
$448Southwest
Find Deal
Thu, Dec 26

Flights from Louisville to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Louisville to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Seattle?

The average price of all flights from Louisville to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Louisville to Seattle, you should consider leaving on a Tuesday and avoid Thursdays if you are looking for the best rates. For your return to Louisville, you’ll find the best rates on Saturdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Louisville to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Louisville to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Louisville to Seattle is January, where tickets cost $361 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $622 and $575 respectively.

How far in advance should I book a flight from Louisville to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Louisville to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Louisville to Seattle, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 37 days before departure.

Good to know

Low season

February

High season

July

Cheapest flight

$173
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Louisville to Seattle

When to book flights from Louisville to Seattle

Are your dates flexible? Find out the best times to travel from Louisville to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Seattle

  • How do I get to downtown Seattle from Seattle–Tacoma International Airport (SEA)?

    SEA is connected to downtown Seattle via the LINK Light Rail system at the Airport Parking Garage, Level 4, which operates every 6 to 15 minutes on weekdays and 10 to 15 minutes on weekends and holidays. The ride to downtown Seattle takes around 40 minutes. You can also take the King County Metro buses, which connect the airport to downtown Seattle. Other options include the Sound Transit express buses, taxis, car rentals, ridesharing, and hotel shuttles.

  • Which airlines offer an unaccompanied minor service on flights from Louisville to Seattle?

    American Airlines, United Airlines, and Delta Airlines offer an unaccompanied minor service for children flying alone from Louisville to Seattle. This service is mandatory for children aged 8 to 14 and optional for children aged 15 to 17 on all airlines. Children below 8 are only allowed to travel alone on direct flights. Your child will be escorted and receive necessary help throughout the flight.

  • What assistance does Louisville Muhammad Ali International Airport (SDF) offer travelers with limited mobility?

    Travelers with special needs or reduced mobility flying through Louisville Muhammad Ali International Airport (SDF) can access several services and amenities, including accessible parking, wheelchair assistance, accessible restrooms, specially-designed ramps, elevators, and the GoodMaps program to enable travelers with low vision to move through the terminal safely. For wheelchair assistance, contact your airline when making your reservation.

  • Are there hotels near Seattle–Tacoma International Airport (SEA)?

    For hotels close to Seattle–Tacoma International Airport (SEA), you can check into Hilton Seattle Airport & Conference Center, Radisson Hotel Seattle Airport, Crowne Plaza Seattle Airport, Red Roof Inn Seattle Airport SEATAC, La Quinta Inn & Suites Seattle SeaTac Airport, Red Lion Hotel Seattle Airport, which offer a free shuttle from the airport.

  • What is the cheapest flight from Louisville to Seattle?

    In the last 3 days, the lowest price for a flight from Louisville to Seattle was $173 for a one-way ticket and $346 for a round-trip.

  • Do I need a passport to fly between Louisville and Seattle?

    No

  • Which aircraft models fly most regularly from Louisville to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to Seattle?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Louisville and Seattle, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Seattle from Louisville?

    Chicago is the most popular layover city among KAYAK users traveling from Louisville to Seattle.

  • Which is the best airline for flights from Louisville to Seattle, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Seattle are Delta and Alaska Airlines. With an average price for the route of $501 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $704 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Louisville to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Louisville with another airline. Booking your flights between Louisville and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Louisville to Seattle

  • The Louisville (SDF) to Seattle (SEA) route is mainly served by one-stop flights. Common layover cities for one-stop flights on this route include Chicago (ORD), Las Vegas (LAS), Dallas (DFW), Detroit (DTW), Denver (DEN), Minneapolis (MSP), Charlotte (CLT), Los Angeles (LAX), Houston (IAD), and Atlanta (ATL). The layover city depends on the flight route.
  • For Business Class flights from Louisville to Seattle, consider booking American Airlines, United Airlines, or Delta Airlines, which offer this travel option on some of their connecting flights on this route. General Business Class benefits and amenities these airlines offer include spacious cabins with comfortable seats, special baggage allowance, premium dining, priority check-in and boarding, in-flight entertainment, and access to specific lounges.
  • American Airlines, United Airlines, Spirit Airlines, and Delta Airlines have no maximum weight limit for carry-on bags on flights from Louisville to Seattle. However, your carry-on bag and personal item shouldn’t exceed the required dimensions and perfectly fit in the overhead compartment and underneath the seat in front of you.
  • If you’re mindful of the environment, you can book Spirit Airlines, American Airlines, United Airlines, Alaska Airlines, or United Airlines, which have reduced carbon emissions on their flights from Louisville to Seattle.
  • From Seattle, you can fly to other cities within the U.S., like Los Angeles, San Francisco, Dallas, Houston, Phoenix, Chicago, New York City, Las Vegas, and Denver, or international destinations like London, Vancouver, Toronto, Tokyo, Dubai, Seoul, Beijing, Amsterdam, Frankfurt, and Mexico City.
See more tips

Top 5 airlines serving from Louisville to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9439 reviews
8.2Boarding
8.6Crew
7.9Comfort
7.2Food
7.1Entertainment
Airline reviews

On my trip from Seattle to San Jose it would’ve been nice to have the gate transfer nearby instead of at the opposite end of the airport that’s it

10.0 ExcellentAnonymous, Nov 2024MSO - SEA
Read more Alaska Airlines reviews

On my trip from Seattle to San Jose it would’ve been nice to have the gate transfer nearby instead of at the opposite end of the airport that’s it

This was our fist time flying Alaska Airlines. Overall it was a great experience. Ticket counter, gate agents and flight attendants were all wonderful. They all seemed happy at what they do and it shows. Of 4 legs, the onboard WiFi was spotty on 1 leg. The food in first class cabin was ok. Couldn’t get the text messaging notifications to work so had to rely on Flight Aware and the Alaska App. Flights were on time and uneventful. We would def fly Alaska Airlines again :)

Both flights were delayed, the Bellingham to Seattle flight was delayed so much I nearly missed my connection with a two hour layover to spare. I could have driven to Seattle and back in the amount of time the flight was delayed. Seattle to Bellingham Washington also delayed. Not good.

I've flown at least six times this past year. For some reason, the entry into Seattle felt like the worst ever. It felt like the plane was going too high, too fast for entry and then a very rough landing. Could have been the weather. All else was fine. Please consider changing snacks from pretzel sticks to nuts as an option.

All pretty good except we were a bit late getting into Seattle and I had to run to my next gate and was the very last person to board (they were about to close the door but were terrific about getting me aboard.) Hustling between gates is not usually a problem, but I just had a hip replacement which affected my ability to hurry.

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

A review system on Kayak that would allow “NA” (Not Applicable) as an answer. For example, if food wasn’t ordered, I cannot say how good it might or might not have been.

Easy boarding, good staff, comfortable seats, easy ride. Also, friendly passengers!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

Your seats are too crowded! and you don't serve full meals on this 5 hour flight? Just rake in the profits.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

The crew was very polite as I have a few handicaps and everything was made pleasant. Check-in was easy as I was brought on board by the wheelchair assistant. One flight attendant did make sure my personal item was carefully stored under the seat in front of me. I was made to feel welcome as a customer as I made my first trip with a few disabilities. Entertainment and wifi worked quite well. The only food service were snacks and drinks. Those were okay. Overall it was a very smooth flight and encouraged me to use Delta again.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Screen didn’t play movies, do I was pretty boated the entire flight.

It was very cold because the air conditioner was on high power, and my son got sick.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

boarding was uneventful. Snack was pathetic. A tiny fruit bar. Entertainment was limited to just select movies on your own tablet or phone. No live TV. I recently flew Jetblue and they had unlimited snacks and live satellite TV the entire flight. My seat was an exit seat, 20A. It was super uncomfortable. It felt cramped and the middle seat was taken up by a large woman who pushed into my shoulder and arm. Horrible flight.

They canceled our flight and left us stranded to figure it out

Cabin was pitch black, even during meal service. The reading lights for seat 2E/F did not work, and seat 2E did not recline.

Long wait before take off without an update for 20 minutes. Flight was good otherwise.

Plane still had screens for watching movies. Good selection too.

The plane’s radio wasn’t working. This delayed the plane for an hour and a half. Then we all broaded and taxied down the runway only to get called back because the radio was still not working. Had to get off the plane and then find another plane making the trip 4 hours delayed. Maybe a different plane should have been chosen sooner?!?!?!

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

There was no air on the plane and it was very hot.

I'm not a valued flyer so I'm always in the last group to board...that sucks, always

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

Flight was cancelled as I was in line for security. Next available flight got me to my destination 24 hrs later than the first. No refunds offered, just credit toward another flight. I booked with delta, got to my destination only 2 hrs behind my original flight schedule. Won’t be using American again.

Checked in the minute I was allowed and still wound up in group 8 for boarding.

great experience. minimal lines at BWI. at DFW they got a long haul 787 boarded in 30 minutes

Overall flight was as expected. It would have been better with a couple options for snack instead of only one item and if there was a TV or music as option. But overall satisfied.

The flight from CLE to JFK was fantasti! Pilots and cre were informative and accommodating.

My flight got delayed for almost 4hrs and then it thankfully went to only 2hrs. Then we were told that there were no space for carry on bags and I had to get it checked... well I counted at least 8 spaces that weren't used and I was one of the few left that actually had one. There was definitely enough space and either the crew can't count or just genuinely are so lazy they don't want to do their jobs correctly and make sure that there ACTUALLY is no space.

Due to an issue with the plane. We waited almost 2 hours to take off. The service reps were great. We had a longer layover but was able to run for it and catch our flight. This also happened on our way out. Maybe the planes need a good look over. The people who work front desk and flight attendants are the best

The experience was good! I did not try any food, or in house entertainment. I don’t believe there were any tvs. Nothing major that stood out, but low key and good! Thanks!!

I upgraded my ticket at the ticket counter and was not informed of the huge bottleneck at TSA pre check. It took me over an hour to get through the line at this small airport and although I ran to the gate and reached it prior to scheduled departure, it had already pushed pack. I missed the flight. Spirit rebooked me on a flight to Orlando that evening, which would require me to then rent a car and drive to FLL. For scheduling reasons, I determined it be would better to rent a car in Pensacola and drive it to my destination in FLL. Spirit called me that evening and asked me if I was going to board the plane. I explained no, for scheduling reasons. The person apologized and said I would receive a refund, but I have not heard back. Certainly, I ought to be refunded the upgrade I paid for at the counter.

The staff from LAX to New Orleans were rude but the staff from New Orleans to LAX were nice!

Did what they needed to do. Brought us from point A to point B timely and without issue. Boarding through deplaning smooth.

Direct 2.5 hour flight good. Free snacks and coffee, water, or soft drinks not available...bad.

Atlanta airport gate area floor and nearly all seats disgusting. Spirit airlines crew fantastic!!

Over 2 hour delay due to “weather” but all other flights were taking off with no issues. We felt lied to the entire time as well.

Everything was excellent and as expected. The boarding process was great but deboarding was a bit slow. No fault of the crew; it just seemed like the passengers didn’t want to leave! 😂

waited 5 hours to tell us it was cancelled even when they knew

Easy! As long as you don’t mind no frills, our flight was enjoyable and on time

No carry on available to purchase at any point, charged for water, no power to charge phone. Other discount airlines have this.

Book cheap flights from Louisville to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Louisville to Seattle found on KAYAK in the last 72 hours.
12/7Sat
1 stopAmerican Airlines
9h 00mSDF-SEA
$173
1/10Fri
2 stopsSpirit Airlines
31h 39mSDF-SEA
$176
12/10Tue
1 stopAmerican Airlines
8h 56mSDF-SEA
$178
1/10Fri
1 stopAmerican Airlines
10h 51mSDF-SEA
$183
3/3Mon
1 stopAmerican Airlines
7h 53mSDF-SEA
$203
12/7Sat
2 stopsUnited Airlines
14h 00mSDF-SEA
$223
3/3Mon
2 stopsUnited Airlines
14h 55mSDF-SEA
$233
3/7Fri
1 stopDelta
10h 00mSDF-SEA
$273
12/4Wed
1 stopAlaska Airlines
8h 36mSDF-SEA
$369
12/26Thu
2 stopsSouthwest
12h 10mSDF-SEA
$448

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Everything you need to know for your flight from Louisville to Seattle

Information on your arrival and departure airports