$319 Cheap Flights from Watertown (ATY) to Spokane (GEG)

View $319 flight on Tue, Sep 23, 2025Opens in a new window

Popular airlines from Watertown, SD (ATY-Watertown Regional) to Spokane International Airport (GEG)

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Cheap Flights from Watertown to Spokane (ATY-GEG)

Prices were available within the past 7 days and start at $319 for one-way flights and $391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 8 - Sat, Oct 11
ATY
Watertown
GEG
Spokane
$391 Roundtrip, found 6 days ago
$391
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 8 from Watertown to Spokane, returning Sat, Oct 11, priced at $391 found 6 days ago
Delta
Tue, Oct 7 - Sat, Oct 11
ATY
Watertown
GEG
Spokane
$401 Roundtrip, found 6 days ago
$401
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 7 from Watertown to Spokane, returning Sat, Oct 11, priced at $401 found 6 days ago
Delta
Tue, Oct 7 - Tue, Oct 14
ATY
Watertown
GEG
Spokane
$411 Roundtrip, found 6 days ago
$411
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 7 from Watertown to Spokane, returning Tue, Oct 14, priced at $411 found 6 days ago
Delta
Mon, Oct 6 - Sat, Oct 11
ATY
Watertown
GEG
Spokane
$456 Roundtrip, found 6 days ago
$456
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Oct 6 from Watertown to Spokane, returning Sat, Oct 11, priced at $456 found 6 days ago
Delta
Mon, Oct 6 - Tue, Oct 14
ATY
Watertown
GEG
Spokane
$466 Roundtrip, found 6 days ago
$466
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Oct 6 from Watertown to Spokane, returning Tue, Oct 14, priced at $466 found 6 days ago
Delta
Wed, Oct 8 - Thu, Oct 16
ATY
Watertown
GEG
Spokane
$467 Roundtrip, found 6 days ago
$467
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 8 from Watertown to Spokane, returning Thu, Oct 16, priced at $467 found 6 days ago
Delta
Tue, Oct 7 - Thu, Oct 16
ATY
Watertown
GEG
Spokane
$477 Roundtrip, found 6 days ago
$477
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 7 from Watertown to Spokane, returning Thu, Oct 16, priced at $477 found 6 days ago
Delta
Fri, Oct 3 - Sat, Oct 11
ATY
Watertown
GEG
Spokane
$506 Roundtrip, found 6 days ago
$506
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Oct 3 from Watertown to Spokane, returning Sat, Oct 11, priced at $506 found 6 days ago
Delta
Fri, Oct 3 - Wed, Oct 8
ATY
Watertown
GEG
Spokane
$516 Roundtrip, found 6 days ago
$516
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Oct 3 from Watertown to Spokane, returning Wed, Oct 8, priced at $516 found 6 days ago
United
Tue, Sep 9 - Sun, Sep 14
ATY
Watertown
GEG
Spokane
$538 Roundtrip, just found
$538
Roundtrip
just found
Select United flight, departing Tue, Sep 9 from Watertown to Spokane, returning Sun, Sep 14, priced at $538 just found
Flights from Watertown (ATY) to Spokane (GEG)
Origin airport
Watertown Regional
Destination airport
Spokane Intl.
Airlines serving
Delta, United
Roundtrip price
$391
Distance
987 mi

Watertown to Spokane Flights

The cheapest times to fly from Watertown to Spokane

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

 

The best time to book a flight from Watertown to Spokane

Sunday is one of the best days to book for cheap flights from Watertown to Spokane: 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 Watertown to Spokane

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 Watertown to Spokane in 2025. You can also book with separate airlines for your outbound and return journeys, from $319 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 Watertown to Spokane 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 Watertown to Spokane 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 Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG) cost?
Discover the latest flight deals from ATY to GEG by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ATY to GEG?
The cheapest flights from ATY to GEG are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ATY to GEG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ATY to GEG. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG)?
Nonstop flights from Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ATY to GEG?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG)?
Select a flight from Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG) that takes off before 3 PM to reduce the risk of 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 Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG) last-minute?
Holding off until just before your departure to book a flight from ATY to GEG often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book an ATY to GEG flight and hotel package?
Opting for an ATY to GEG flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Watertown Regional Airport (ATY) to Spokane Intl. Airport (GEG)?
You can usually cancel or reschedule your ATY to GEG flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.