$166 Cheap Flights from Seattle (SEA) to Hermosillo (HMO)

View $166 flight on Mon, Mar 23, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Hermosillo, Sonora (HMO-General Ignacio Pesqueira Garcia Intl.)

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Cheap Flights from Seattle to Hermosillo (SEA-HMO)

Prices were available within the past 7 days and start at $166 for one-way flights and $358 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Volaris
Mon, Mar 23 - Fri, Apr 3
SEA
Seattle
HMO
Hermosillo
$358 Roundtrip, found 5 days ago
$358
Roundtrip
found 5 days ago
Select Volaris flight, departing Mon, Mar 23 from Seattle to Hermosillo, returning Fri, Apr 3, priced at $358 found 5 days ago
Volaris
Tue, Jan 20 - Tue, Jan 27
SEA
Seattle
HMO
Hermosillo
$367 Roundtrip, found 12 hours ago
$367
Roundtrip
found 12 hours ago
Select Volaris flight, departing Tue, Jan 20 from Seattle to Hermosillo, returning Tue, Jan 27, priced at $367 found 12 hours ago
Volaris
Tue, Mar 17 - Fri, Mar 27
SEA
Seattle
HMO
Hermosillo
$369 Roundtrip, found 1 day ago
$369
Roundtrip
found 1 day ago
Select Volaris flight, departing Tue, Mar 17 from Seattle to Hermosillo, returning Fri, Mar 27, priced at $369 found 1 day ago
Volaris
Sat, Feb 14 - Tue, Feb 24
SEA
Seattle
HMO
Hermosillo
$377 Roundtrip, found 11 hours ago
$377
Roundtrip
found 11 hours ago
Select Volaris flight, departing Sat, Feb 14 from Seattle to Hermosillo, returning Tue, Feb 24, priced at $377 found 11 hours ago
Volaris
Sun, Mar 22 - Sat, Mar 28
SEA
Seattle
HMO
Hermosillo
$378 Roundtrip, found 4 days ago
$378
Roundtrip
found 4 days ago
Select Volaris flight, departing Sun, Mar 22 from Seattle to Hermosillo, returning Sat, Mar 28, priced at $378 found 4 days ago
Volaris
Thu, Jan 22 - Wed, Jan 28
SEA
Seattle
HMO
Hermosillo
$382 Roundtrip, found 2 days ago
$382
Roundtrip
found 2 days ago
Select Volaris flight, departing Thu, Jan 22 from Seattle to Hermosillo, returning Wed, Jan 28, priced at $382 found 2 days ago
Volaris
Wed, Jan 14 - Wed, Jan 21
SEA
Seattle
HMO
Hermosillo
$395 Roundtrip, found 6 days ago
$395
Roundtrip
found 6 days ago
Select Volaris flight, departing Wed, Jan 14 from Seattle to Hermosillo, returning Wed, Jan 21, priced at $395 found 6 days ago
American Airlines
Wed, Dec 31 - Wed, Feb 11
SEA
Seattle
HMO
Hermosillo
$462 Roundtrip, just found
$462
Roundtrip
just found
Select American Airlines flight, departing Wed, Dec 31 from Seattle to Hermosillo, returning Wed, Feb 11, priced at $462 just found
Aeromexico
Wed, Feb 18 - Wed, Feb 25
SEA
Seattle
HMO
Hermosillo
$682 Roundtrip, found 11 hours ago
$682
Roundtrip
found 11 hours ago
Select Aeromexico flight, departing Wed, Feb 18 from Seattle to Hermosillo, returning Wed, Feb 25, priced at $682 found 11 hours ago
Delta
Tue, Jan 20 - Tue, Jan 27
SEA
Seattle
HMO
Hermosillo
$745 Roundtrip, found 12 hours ago
$745
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Jan 20 from Seattle to Hermosillo, returning Tue, Jan 27, priced at $745 found 12 hours ago

Alternative airports near Hermosillo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Ignacio Pesqueira Garcia Intl. HMO. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $1,165
HMO
General Ignacio Pesqueira Garcia Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $1,165

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO) cost?
Grab a cheap one-way flight from $166 or cheap return flight from $358 from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO)?
The cheapest month to fly from SEA to HMO is March, when there's less demand. Off-peak months are often when better flight deals are available between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO)?
To find the cheapest airline that'll fly you from SEA to HMO, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO)?
There aren't any daily direct flights from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from SEA to HMO?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO)?
Opt for a flight from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO) last-minute?
Booking your flight from SEA to HMO just before your getaway is typically more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SEA to HMO flight and hotel package?
You can save money by booking a SEA to HMO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred flights and accommodations, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to General Ignacio Pesqueira Garcia Intl. Airport (HMO)?
Usually, it's possible to cancel or reschedule your SEA to HMO flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
General Ignacio Pesqueira Garcia Intl.
Airlines serving
Aeromexico, American Airlines, Delta, Volaris
Roundtrip price
$358
Distance
1403 mi

Book with confidence

Seattle to Hermosillo Flights

The cheapest times to fly from Seattle to Hermosillo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Hermosillo are during the month of March. You can find some of the cheapest flights from Seattle to Hermosillo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Hermosillo

Sunday is one of the best days to book for cheap flights from Seattle to Hermosillo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Hermosillo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Hermosillo in 2025. You can also book with separate airlines for your outbound and return journeys, from $166 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Hermosillo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Hermosillo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Hermosillo Flights

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*Available to One Key members.