SEA - HMO

$403 Find Cheap Flights from Seattle to Hermosillo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Hermosillo departing on 1/30. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Hermosillo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Hermosillo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Hermosillo, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$490
Multiple Airlines
Fri 2/20Fri 2/27
SEA - HMO • 1 stop
Cheapest one-way
$242
Multiple Airlines
Fri 1/30
SEA - HMO • 2 stops
Top airlines
Volaris
Cheapest • from $496 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Hermosillo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Hermosillo (SEA-HMO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Hermosillo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Hermosillo

Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
10:51 am - 2:45 pm
SEA
-
HMO
26h 54m
1 stop
Multiple Airlines Logo
12:35 pm - 8:28 am
HMO
-
SEA
20h 53m
2 stops
$490Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Volaris Logo
10:00 pm - 7:45 am
SEA
-
HMO
8h 45m
1 stop
Volaris Logo
8:26 am - 7:48 pm
HMO
-
SEA
12h 22m
1 stop
$496Volaris
Mon, Feb 16 - Tue, Feb 24
American Airlines Logo
3:00 pm - 12:26 pm
SEA
-
HMO
20h 26m
1 stop
American Airlines Logo
1:06 pm - 10:56 am
HMO
-
SEA
22h 50m
1 stop
$610American Airlines
Thu, Apr 30 - Sun, May 3
American Airlines Logo
2:57 pm - 11:29 am
SEA
-
HMO
20h 32m
1 stop
American Airlines Logo
12:09 pm - 5:48 pm
HMO
-
SEA
5h 39m
1 stop
$693American Airlines
Thu, Apr 30 - Sun, May 3
American Airlines Logo
6:19 pm - 11:29 am
SEA
-
HMO
17h 10m
1 stop
American Airlines Logo
12:09 pm - 5:48 pm
HMO
-
SEA
5h 39m
1 stop
$711American Airlines
Thu, Apr 30 - Sun, May 3
Aeromexico Logo
9:30 am - 11:40 pm
SEA
-
HMO
14h 10m
1 stop
Aeromexico Logo
5:25 pm - 11:58 pm
HMO
-
SEA
30h 33m
2 stops
$938Aeromexico
Thu, Apr 30 - Sun, May 3
Aeromexico Logo
11:45 am - 8:25 am
SEA
-
HMO
20h 40m
2 stops
Aeromexico Logo
7:55 pm - 11:58 pm
HMO
-
SEA
28h 03m
2 stops
$947Aeromexico
Mon, Feb 16 - Tue, Feb 24
Aeromexico Logo
9:34 am - 10:59 pm
SEA
-
HMO
12h 25m
1 stop
Aeromexico Logo
5:58 pm - 9:51 pm
HMO
-
SEA
28h 53m
2 stops
$959Aeromexico
Mon, Feb 16 - Tue, Feb 24
Aeromexico Logo
9:50 am - 8:19 am
SEA
-
HMO
21h 29m
2 stops
Aeromexico Logo
7:46 pm - 2:44 pm
HMO
-
SEA
19h 58m
2 stops
$969Aeromexico
Fri, Feb 20 - Fri, Feb 27
Delta Logo
7:25 am - 10:59 pm
SEA
-
HMO
14h 34m
2 stops
Delta Logo
6:05 am - 11:12 pm
HMO
-
SEA
18h 07m
2 stops
$1,012Delta
Booking Insights

KAYAK's insights & trends for Seattle to Hermosillo flights

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

Which airlines provide the cheapest flights from Seattle to Hermosillo?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seattle to Hermosillo were found on Volaris ($496) and American Airlines ($610).

Find deals

Good to know

Low seasonApril
Cheapest flight$242
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Seattle to Hermosillo

When to book flights from Seattle to Hermosillo

Are your dates flexible? Find out the best times to travel from Seattle to Hermosillo 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 Seattle to Hermosillo

  • What is the cheapest flight from Seattle to Hermosillo?

    In the last 3 days, the lowest price for a flight from Seattle to Hermosillo was $242 for a one-way ticket and $490 for a round-trip.

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

    Yes, you’ll need a passport to travel to Hermosillo from Seattle.

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

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

  • Which airline alliances offer flights from Seattle to Hermosillo?

    oneworld is the only airline alliance operating flights between Seattle and Hermosillo.

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

    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 Seattle to Hermosillo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hermosillo from Seattle 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 Seattle to Hermosillo?

    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 Hermosillo with an airline and back to Seattle with another airline. Booking your flights between Seattle and HMO 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 Seattle to Hermosillo?

    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 Hermosillo from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Hermosillo

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Hermosillo. 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 Seattle to Hermosillo? 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.
7.2
American AirlinesOverall score based on 11177 reviews
6.9Entertainment
7.5Boarding
8.0Crew
7.2Comfort
6.4Food
Airline reviews

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

2.0 MediocreLi Han, Jan 2026
STL - PHX
Read more American Airlines reviews

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

Enough space,crew was helpful,food was good.The gates are way far especially for travelers with health issues

No enough space plus only allowing one laggage instead of two like other airlines.

There were no TV screens - even in Business class. 5 delays, and only given $12 meal voucher! Terrible!

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

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

Information on your arrival and departure airports

Seattle (SEA)
Hermosillo (HMO)