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Hermosillo

$189+ Cheap flights from Seattle (SEA) to Hermosillo (HMO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HMO
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap flight deals from Seattle to Hermosillo

Cheapest flights from Seattle to Hermosillo
Explore the most affordable flight options available from Seattle to Hermosillo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 19, 2026.

This Expedia deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:00 pm
SEA
-
HMO
1 stop14h 46m
Volaris
Sun 5/37:48 am
HMO
-
SEA
1 stop12h 01m
Volaris
Deal found 2/16$353
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:00 am
SEA
-
HMO
1 stop27h 30m
Multiple Airlines
Wed 4/18:20 pm
HMO
-
SEA
2 stops39h 17m
Multiple Airlines
Deal found 2/16$472
This Mytrip deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:42 pm
SEA
-
HMO
2 stops19h 16m
Volaris
Wed 4/87:48 am
HMO
-
SEA
1 stop12h 01m
Volaris
Deal found 2/17$481
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:57 pm
SEA
-
HMO
1 stop20h 37m
American Airlines
Tue 5/512:14 pm
HMO
-
SEA
1 stop22h 27m
American Airlines
Deal found 2/16$499
This Mytrip deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:00 pm
SEA
-
HMO
3 stops22h 16m
Volaris
Sun 5/38:41 am
HMO
-
SEA
3 stops35h 08m
Volaris
Deal found 2/16$510
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:24 pm
SEA
-
HMO
2 stops12h 51m
Multiple Airlines
Wed 4/13:20 pm
HMO
-
SEA
1 stop26h 13m
Multiple Airlines
Deal found 2/16$531
This American Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:22 pm
SEA
-
HMO
1 stop17h 16m
American Airlines
Tue 4/1412:14 pm
HMO
-
SEA
1 stop22h 27m
American Airlines
Deal found 2/18$535

Find flight deals from Seattle to Hermosillo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Hermosillo (HMO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(Expedia)

One-way from

$189
(Travelocity)

Popular in

December

Cheapest in

February

Average price

$413
Provider with most accurate pricing for Seattle/Tacoma Intl-Hermosillo Gen Pesqueira Garcia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Hermosillo Gen Pesqueira Garcia flights.
Search Deals
From Seattle/Tacoma Intl to Hermosillo Gen Pesqueira Garcia
Search Deals
One-way flight from Seattle/Tacoma Intl to Hermosillo Gen Pesqueira Garcia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Hermosillo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 19, 2026.
Use the filters below to find and compare flights from Seattle to Hermosillo that are best for you.

Fly from

Seattle

Fly to

Hermosillo

Route

Depart

Return

Price

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Thu 4/30

11:00 pm-1:46 pm

1 stop14h 46m

Hermosillo Gen Pesqueira Garcia

Sun 5/3

7:48 am-7:49 pm

1 stop12h 01m

$353

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Mon 3/30

11:00 pm-7:22 pm

3 stops20h 22m

Hermosillo Gen Pesqueira Garcia

Wed 4/8

7:48 am-7:49 pm

1 stop12h 01m

$532

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Fri 3/27

10:00 pm-7:10 am

1 stop9h 10m

Hermosillo Gen Pesqueira Garcia

Sun 3/29

8:34 pm-11:22 am

1 stop14h 48m

$550

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Tue 3/31

10:00 am-1:40 pm

1 stop27h 40m

Hermosillo Gen Pesqueira Garcia

Tue 4/14

8:00 am-5:42 pm

2 stops33h 42m

$555

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Thu 4/30

6:30 am-11:34 am

1 stop5h 04m

Hermosillo Gen Pesqueira Garcia

Sun 5/3

12:14 pm-10:41 am

1 stop22h 27m

$557

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Tue 3/31

11:00 pm-9:25 am

3 stops34h 25m

Hermosillo Gen Pesqueira Garcia

Tue 4/14

7:48 am-7:49 pm

1 stop12h 01m

$565

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Thu 4/30

6:33 pm-7:51 pm

3 stops25h 18m

Hermosillo Gen Pesqueira Garcia

Sun 5/3

8:41 am-7:49 pm

3 stops35h 08m

$642

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Fri 4/3

11:00 pm-9:25 am

3 stops34h 25m

Hermosillo Gen Pesqueira Garcia

Fri 4/10

7:48 am-7:49 pm

1 stop12h 01m

$664

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Thu 4/30

11:00 pm-1:46 pm

1 stop14h 46m

$189

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

Thu 4/30

4:20 pm-7:45 am

2 stops39h 25m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 13 results
1
2

Compare providers for flights from Seattle to Hermosillo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Hermosillo in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Hermosillo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Hermosillo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Hermosillo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Hermosillo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Hermosillo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Hermosillo

Have a flexible travel schedule? Discover the best time to fly to Hermosillo from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Hermosillo

Get insights into the airlines that provide service to Hermosillo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hermosillo. Reviews last updated February 19, 2026.
Peruse reviews from past customers who have flown with American Airlines from Seattle to Hermosillo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,313 reviews

Crew

8.0

Comfort

7.2

Overall

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,313 reviews
American Airlines
7.2
Good
11,313 reviews

Crew

8.0

Comfort

7.2

Overall

7.2

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Hermosillo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Hermosillo?

    Volaris and American Airlines can get you from Seattle to Hermosillo in just under 5h 04m. Your travel time can differ by up to 9h 42m. The distance from Seattle to Hermosillo is about 1403 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Hermosillo round-trip?

    Cheapflights users have booked flights from Seattle to Hermosillo round-trip from $533. American Airlines is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Hermosillo that include hotel bookings?

    Yes. In addition to deals on Seattle to Hermosillo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Hermosillo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Hermosillo.

  • Can I find deals for business class flights from Seattle to Hermosillo?

    Yes. Cheapflights offers flight deals from Seattle to Hermosillo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Hermosillo?

Book flights to Hermosillo if you plan to visit one of these locations
San Carlos

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Alternative routes for Seattle to Hermosillo

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Seattle to Hermosillo

Discover the top airline that operate flights from Seattle to Hermosillo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$533Average$585FlexibilityNo cancel feeOn-time71%

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