SEA - HMO

$300 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 12/5. 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

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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Flights 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, Sep 12 - Sat, Sep 20
Volaris Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$342Volaris
Find Deal
Sat, Sep 13 - Sat, Sep 20
Volaris Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$353Volaris
Find Deal
Sat, Sep 13 - Sat, Sep 20
Volaris Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$374Volaris
Find Deal
Fri, Aug 22 - Fri, Aug 29
Volaris Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$395Volaris
Find Deal
Wed, Aug 20 - Wed, Aug 27
Volaris Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$407Volaris
Find Deal
Fri, Aug 22 - Fri, Aug 29
 Logo
10:15 pm - 7:11 amSEA-HMO
8h 56m1 stop
 Logo
8:40 am - 8:42 amHMO-SEA
24h 02m2 stops
Fri, Aug 22 - Fri, Aug 29
Volaris Logo
10:15 pm - 10:46 pmSEA-HMO
24h 31m3 stops
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$524Volaris
Find Deal
Wed, Aug 20 - Wed, Aug 27
Volaris Logo
10:15 pm - 9:30 pmSEA-HMO
23h 15m2 stops
Volaris Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
$530Volaris
Find Deal
Wed, Aug 20 - Wed, Aug 27
 Logo
10:15 pm - 8:50 pmSEA-HMO
22h 35m3 stops
 Logo
7:57 am - 8:15 pmHMO-SEA
12h 18m1 stop
Sat, Sep 13 - Sat, Sep 20
Aeromexico Logo
11:40 pm - 6:15 pmSEA-HMO
18h 35m2 stops
Aeromexico Logo
9:20 am - 9:58 pmHMO-SEA
12h 38m2 stops
$829Aeromexico
Find Deal
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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 ($342) and Aeromexico ($829).

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$300
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 3% increase in price.
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 $300 for a one-way ticket and $342 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?

    SkyTeam 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 airlines 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 10000 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
8.0Crew
6.5Food
Airline reviews

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

2.0 MediocreShelby, Jul 2025ATL - DCA
Read more American Airlines reviews

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Confusion over extra fees. Held up on ramp during boarding. Thin seat cushion. Minimal leg room.

The check-in is either at a kiosk that didn’t allow me to check-in because my middle name was not on the reservation or at an agent that cost $15.

Better communication about delayed flight. I am thankful for a small credit for late flight.

Liked on time, rear entry and exit from plane Dislike the use of duct tape to repair seat rests

Terrible. And they charged over $400 just for luggage. And threatened that I would loose my flight if I didn’t pay. So I didn’t have another choice but to pay.

They don’t give anything for free you have to pay for everything which it’s expected but at least give out water and a snack as a courtesy for flying with them.

I got to where I needed to go quickly. There were no amenities. And the seats were painful.

The worst. Kayak sent notification at 2am and 10am regarding the delay. Then sends a notification an hour before original depart time that it will depart on time. I had to wait 8 hours at the airport. My family had to pay for lodging in Guadalajara where I was landing for pick up.

The flight was delayed an hour and a half, and they would not update the board on when the flight was supposed to take off. Once the plane arrived, they started the boarding process before the plane was even ready for the passengers so we had to wait another 45 minutes on the tarmac while we waited for the plane to be ready for us. In my opinion, there is no point in starting the boarding process when you are not ready to board the plane. This just causes a crowded gate with everyone from zone one and zone two standing up going nowhere.

They were only able to give me a seat and not my travel companion, she had to fly on a different airline. unacceptable

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

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