Cheap Flights from Seattle (SEA) to Hermiston (HES)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Hermiston, OR (HES-Hermiston Municipal)

Alternative airports near Hermiston

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

Select flight to Tri-Cities PSC. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $297
PSC
Tri-Cities
Cheapest
Average driving time to city center42 min
Flights from $297
Select flight to Eastern Oregon Regional PDT. Average driving time to city center is 33 minutes. Flights from $689
PDT
Eastern Oregon Regional
Average driving time to city center33 min
Flights from $689
Flights from Seattle (SEA) to Hermiston (HES)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Hermiston Municipal
Distance
182 mi

Seattle to Hermiston Flights

The cheapest times to fly from Seattle to Hermiston

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 Hermiston are during the month of . You can find some of the cheapest flights from Seattle to Hermiston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Hermiston

Sunday is one of the best days to book for cheap flights from Seattle to Hermiston: 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 Hermiston

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 Hermiston in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Hermiston 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 Hermiston 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.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES) cost?
Get a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES)?
is the cheapest month to fly from SEA to HES. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from SEA to HES. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES)?
There aren't any daily direct flights departing from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from SEA to HES?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Hermiston Municipal Airport (HES)?
To arrive at Hermiston Municipal Airport (HES) without delays, select a flight that leaves from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
What airports do you fly into for Hermiston from Seattle - Tacoma Intl. Airport (SEA)?
If you're flying on a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Hermiston, Tri-Cities Airport (PSC) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES) last-minute?
Waiting until just before your departure to book your flight from SEA to HES generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book a SEA to HES flight and hotel package?
You can save money by booking a SEA to HES 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 everything in one convenient place. Once you've selected your preferred flights and accommodations, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Hermiston Municipal Airport (HES)?
If you reserved your SEA to HES flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Explore a world of travel with Expedia

*Available to One Key members.