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Hermosillo

$218+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HMO
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap 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 julio 3, 2025.

Round-trip from

$337
(Mytrip)

One-way from

$218
(Booking.com)

Popular in

December

Cheapest in

February

Average price

$728
From Seattle/Tacoma Intl to Hermosillo Gen Pesqueira Garcia
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One-way flight from Seattle/Tacoma Intl to Hermosillo Gen Pesqueira Garcia
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Highest demand for flights based on searches. 19% potential increase in price ($180 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julio 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/2. 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.
mié. 9/1010:15 pmSEA - HMO
1 stop8h 56mVolaris
mié. 9/177:57 amHMO - SEA
1 stop12h 18mVolaris
Deal found 7/2$337
This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
dom. 8/177:55 amSEA - HMO
2 stops22h 30mMultiple Airlines
dom. 8/247:57 amHMO - SEA
1 stop12h 18mMultiple Airlines
Deal found 7/3$476
This Aeromexico deal was found by Cheapflights users on 6/30. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1310:15 amSEA - HMO
2 stops21h 57mAeromexico
sáb. 9/204:07 pmHMO - SEA
2 stops24h 52mAeromexico
Deal found 6/30$828

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 julio 3, 2025.
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

mié. 9/10

10:15 pm-7:11 am

1 stop8h 56m

Hermosillo Gen Pesqueira Garcia

mié. 9/17

7:57 am-8:15 pm

1 stop12h 18m

$337

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

dom. 8/17

7:55 am-6:25 am

2 stops22h 30m

Hermosillo Gen Pesqueira Garcia

dom. 8/24

7:57 am-8:15 pm

1 stop12h 18m

$476

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

sáb. 9/13

10:15 am-8:12 am

2 stops21h 57m

Hermosillo Gen Pesqueira Garcia

sáb. 9/20

4:07 pm-4:59 pm

2 stops24h 52m

$828

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

jue. 8/7

10:00 pm-7:11 am

1 stop9h 11m

$218

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

jue. 8/7

7:00 am-7:45 am

2 stops24h 45m

$238

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

vie. 12/5

6:15 am-12:44 pm

1 stop5h 29m

$329

SeattleHermosillo

SEA - HMO

SEAHMO

Seattle/Tacoma Intl

vie. 12/5

11:55 pm-7:37 pm

2 stops18h 42m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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.

Cheapflights Insights

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

What is the cheapest time of day to fly from SEA to HMO?

Find hourly flight availability from Seattle to Hermosillo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

It’s optimal to fly from Seattle to Hermosillo at noon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

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 julio 3, 2025.
Peruse reviews from past customers who have flown with Aeromexico and Volaris 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.
Aeromexico
7.5
Good
1,718 reviews

Boarding

7.4

Entertainment

7.1

Comfort

7.6

Food

6.6

Overall

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2025

VER - MEX

Was West jet. Very unconrtsble seats. If they can put more seats probably they will.
Aeromexico
7.5
Good
1,718 reviews
Aeromexico
7.5
Good
1,718 reviews

Boarding

7.4

Entertainment

7.1

Comfort

7.6

Food

6.6

Overall

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2025

VER - MEX

Was West jet. Very unconrtsble seats. If they can put more seats probably they will.
Volaris
6.7
Okay
1,171 reviews
Aeromexico
7.5
Good
1,718 reviews

Boarding

7.4

Entertainment

7.1

Comfort

7.6

Food

6.6

Overall

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

Anonymous,Jun 2025

VER - MEX

Was West jet. Very unconrtsble seats. If they can put more seats probably they will.

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.

  • What are the cheapest airlines flying from Seattle to Hermosillo round-trip?

    Cheapflights users have booked flights from Seattle to Hermosillo round-trip from $337. Another airline that can offer you cheap pricing is Aeromexico. Volaris is priced at 55% 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.

  • What is the cheapest month to book a flight from Seattle to Hermosillo?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Hermosillo (average of $414). Flying from Seattle to Hermosillo in December is currently the most expensive (average of $836). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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 2 airlines flying from Seattle to Hermosillo

Discover the top 2 airlines 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$496Average$782FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$525Average$692FlexibilityNo cancel feeOn-time71%

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