BIL - IAD

$203 Find Cheap Flights from Billings to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Dulles Intl departing on 1/9. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to Washington, D.C., 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 Billings to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$345
American Airlines
Wed 3/4Wed 3/18
BIL - IAD • 1 stop
Cheapest one-way
$203
Multiple Airlines
Fri 1/9
BIL - IAD • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Dulles Intl (BIL-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Dulles Intl 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 Billings to Dulles Intl

Wed, Mar 4 - Wed, Mar 18
American Airlines Logo
5:34 am - 4:31 pm
BIL
-
IAD
8h 57m1 stop
American Airlines Logo
6:00 am - 1:21 pm
IAD
-
BIL
9h 21m1 stop
$345American Airlines
Wed, Jan 28 - Sun, Feb 1
Alaska Airlines Logo
3:35 pm - 4:26 pm
BIL
-
IAD
22h 51m1 stop
Alaska Airlines Logo
6:04 pm - 2:55 pm
IAD
-
BIL
22h 51m1 stop
$354Alaska Airlines
Thu, Jan 29 - Sun, Feb 1
Alaska Airlines Logo
2:02 pm - 4:26 pm
BIL
-
IAD
24h 24m1 stop
Alaska Airlines Logo
6:04 pm - 2:55 pm
IAD
-
BIL
22h 51m1 stop
$364Alaska Airlines
Thu, Feb 26 - Tue, Mar 3
Alaska Airlines Logo
2:04 pm - 5:20 pm
BIL
-
IAD
25h 16m1 stop
Alaska Airlines Logo
7:05 am - 11:38 pm
IAD
-
BIL
18h 33m1 stop
$390Alaska Airlines
Wed, Mar 4 - Wed, Mar 18
Delta Logo
6:20 am - 1:35 pm
BIL
-
IAD
5h 15m1 stop
Delta Logo
10:06 am - 10:29 pm
IAD
-
BIL
14h 23m2 stops
$394Delta
Sat, Jan 24 - Sat, Jan 31
Delta Logo
11:47 am - 11:06 pm
BIL
-
IAD
9h 19m2 stops
Delta Logo
10:47 am - 7:24 pm
IAD
-
BIL
10h 37m2 stops
$399Delta
Thu, Feb 26 - Tue, Mar 3
Delta Logo
6:20 am - 1:35 pm
BIL
-
IAD
5h 15m1 stop
Delta Logo
12:38 pm - 7:39 pm
IAD
-
BIL
9h 01m2 stops
$404Delta
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
6:54 am - 11:12 pm
BIL
-
IAD
14h 18m2 stops
American Airlines Logo
11:34 am - 11:42 pm
IAD
-
BIL
14h 08m2 stops
$409American Airlines
Thu, Jan 29 - Sun, Feb 1
Delta Logo
11:47 am - 11:57 pm
BIL
-
IAD
10h 10m2 stops
Delta Logo
2:15 pm - 7:24 pm
IAD
-
BIL
7h 09m1 stop
$414Delta
Thu, Jan 29 - Sun, Feb 1
American Airlines Logo
6:54 am - 9:17 pm
BIL
-
IAD
12h 23m2 stops
American Airlines Logo
1:08 pm - 11:42 pm
IAD
-
BIL
12h 34m2 stops
$419American Airlines
Booking Insights

KAYAK's insights & trends for Billings to Dulles Intl flights

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

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

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

Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Thursday and more expensive on a Friday. On your return trip to Billings, you should consider flying back on a Saturday, and avoid Sundays for better deals.

Find deals

Good to know

Cheapest flight$203
Flight from Billings to Washington Dulles Airport

When to book flights from Billings to Dulles Intl

Are your dates flexible? Find out the best times to travel from Billings to Dulles Intl 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 Billings to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Billings to Washington, D.C. Dulles Intl Airport was $203 for a one-way ticket and $364 for a round-trip.

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

    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 Billings to Washington Dulles Airport?

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

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

    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 Billings to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Billings 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 Billings to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Billings with another airline. Booking your flights between Billings and IAD 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 Billings to Washington Dulles Airport?

    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 Washington Dulles Airport from Billings up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Billings to Dulles Intl

Information on your arrival and departure airports

Billings (BIL)
Dulles Intl (IAD)