IAD - GTF

$207 Find Cheap Flights from Washington Dulles Airport to Great Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Great Falls departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Great Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Great Falls, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Dulles Intl to Great Falls (IAD-GTF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Great Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Great Falls

Thu, Nov 20 - Wed, Nov 26
Alaska Airlines Logo
6:13 pm - 7:02 pmIAD-GTF
26h 49m1 stop
Alaska Airlines Logo
7:42 pm - 6:28 amGTF-IAD
8h 46m1 stop
$434Alaska Airlines
Find Deal
Wed, Jan 14 - Sun, Jan 18
Delta Logo
7:15 am - 12:32 pmIAD-GTF
7h 17m1 stop
Delta Logo
1:10 pm - 11:50 pmGTF-IAD
8h 40m1 stop
$442Delta
Find Deal
Wed, Jan 14 - Sun, Jan 18
Delta Logo
12:35 pm - 10:53 pmIAD-GTF
12h 18m2 stops
Delta Logo
1:10 pm - 11:50 pmGTF-IAD
8h 40m1 stop
$452Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
Alaska Airlines Logo
6:09 pm - 3:49 pmIAD-GTF
23h 40m1 stop
Alaska Airlines Logo
4:29 pm - 5:09 pmGTF-IAD
22h 40m1 stop
$469Alaska Airlines
Find Deal
Fri, Sep 5 - Mon, Sep 8
Alaska Airlines Logo
5:52 pm - 3:49 pmIAD-GTF
23h 57m2 stops
Alaska Airlines Logo
4:29 pm - 5:09 pmGTF-IAD
22h 40m1 stop
$502Alaska Airlines
Find Deal
Fri, Sep 5 - Mon, Sep 8
Alaska Airlines Logo
5:52 pm - 3:49 pmIAD-GTF
23h 57m2 stops
Alaska Airlines Logo
4:29 pm - 12:23 amGTF-IAD
29h 54m1 stop
$512Alaska Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
 Logo
12:40 pm - 9:36 amIAD-GTF
22h 56m3 stops
 Logo
11:11 am - 4:15 pmGTF-IAD
27h 04m3 stops
Wed, Jan 14 - Sun, Jan 18
Delta Logo
12:35 pm - 10:53 pmIAD-GTF
12h 18m2 stops
Delta Logo
5:30 am - 4:36 pmGTF-IAD
9h 06m2 stops
$523Delta
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
6:30 am - 1:36 pmIAD-GTF
9h 06m1 stop
United Airlines Logo
2:35 pm - 12:45 amGTF-IAD
8h 10m1 stop
$592United Airlines
Find Deal
Wed, Aug 13 - Mon, Aug 18
United Airlines Logo
2:39 pm - 9:13 pmIAD-GTF
8h 34m1 stop
United Airlines Logo
6:25 am - 12:45 amGTF-IAD
16h 20m1 stop
$637United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Great Falls flights

Get data-powered insights and trends into flights from Dulles Intl to Great Falls to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Great Falls?

What’s the cheapest day of the week to fly from Washington Dulles Airport to Great Falls?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Great Falls clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Great Falls, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

Good to know

Low seasonMarch
Cheapest flight$207
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 25% lower on average.
Flight from Washington Dulles Airport to Great Falls

When to book flights from Dulles Intl to Great Falls

Are your dates flexible? Find out the best times to travel from Dulles Intl to Great Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Great Falls flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Great Falls?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Great Falls was $207 for a one-way ticket and $434 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Great Falls?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Great Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Great Falls?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Great Falls, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Great Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Great Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Great Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Great Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and GTF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Great Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Great Falls

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Great Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Great Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8896 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

8.0 ExcellentHal, Jul 2025IAD - MSY
Read more United Airlines reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Everything you need to know for your flight from Dulles Intl to Great Falls

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.