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Cheap Flights from Washington D.C. (BWI) to Billings (BIL)

Compare Baltimore Washington International to Billings flight deals

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Flight deals from Baltimore Washington International to Billings

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to Billings Airport? If you want to travel next month, return fares start from $517. Find the lowest prices on one-way and return tickets right here.
Billings.$510 per passenger.Departing Mon, 31 Aug, returning Sun, 6 Sep.Return flight with United.Outbound indirect flight with United, departs from Baltimore Washington International on Mon, 31 Aug, arriving in Billings.Inbound indirect flight with United, departs from Billings on Sun, 6 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From $510, select.
Billings.$516 per passenger.Departing Tue, 25 Aug, returning Mon, 31 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 25 Aug, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Mon, 31 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From $516, select.
Billings.$516 per passenger.Departing Sat, 10 Oct, returning Fri, 16 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Sat, 10 Oct, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Fri, 16 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From $516, select.
Billings.$516 per passenger.Departing Wed, 2 Sep, returning Wed, 9 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 2 Sep, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Wed, 9 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From $516, select.
Billings.$1,240 per passenger.Departing Fri, 28 May, returning Sun, 6 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 28 May, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Sun, 6 Jun, arriving in Baltimore Washington International.Price includes taxes and charges.From $1,240, select.

Find the cheapest month to fly from Baltimore Washington International to Billings

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Billings flights are currently cheapest in August.
Jul
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Aug
from $516
Sep
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Oct
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Baltimore Washington International to Billings: Alternative routes

Compare routes from Baltimore Washington International to Billings below. You may find an airport to fly into that's cheaper, faster, or easier than Billings.

Billings

5km from central Billings
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from $510
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Washington D.C. to Billings: Flight information

The things to know before you go.
Cheapest flight found$512
Cheapest month to flyAugust

Finding cheap flights from Baltimore Washington International to Billings: Frequently asked questions

The best price we found for a return flight from Baltimore Washington International to Billings is $512. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Baltimore Washington International to Billings. But we found flights with one or more stops from $510.
As of July 2026, there are no flights flying from Baltimore Washington International to Billings.
The cheapest month to fly from Baltimore Washington International to Billings is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Billings Airport on Monday, 31 August 2026.
No airlines currently offer direct flights between Baltimore Washington International Airport and Billings Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Billings but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Billings.

Travelling from Baltimore Washington International Airport (BWI) to Billings Airport (BIL): what you need to know

  • Arrive at the airport on time so you don't miss your BWI to BIL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • During popular months such as July, it's best to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're flying during a peak period in general.

  • Consider adding a stopover when booking your ticket from Baltimore Washington International Airport to Billings Airport. Simply uncheck 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Check out these options between BWI and BIL:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Baltimore Washington International Airport (BWI) to Billings Airport (BIL)

  • At the moment, $415 is the cheapest price we've found for a one-way Baltimore Washington International Airport to Billings Airport flight. The best price for a return plane ticket is $510. Bear in mind that fares can change due to demand at the time of booking.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from BWI to BIL if you book ahead. Airlines often have some terrific early bird discounts.

  • Finding cheap flights from Baltimore Washington International Airport to Billings Airport is easy if you're flexible with your dates. Use the 'Whole month' tool to see the lowest fares throughout the month and bag a great deal.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll notify you the moment a special offer becomes available on cheap flights from BWI to BIL.

  • Discover the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Baltimore Washington International Airport to Billings Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Baltimore Washington International Airport (BWI)

  • When it comes to the on-time performance of Baltimore Washington International Airport, data shows 77% of flights meet their scheduled arrival time.

  • Central Washington DC to Baltimore Washington International Airport is around 48 kilometres. Depending on traffic, it'll take about 40 minutes to get there if you're catching a taxi, ride-sharing or driving.

  • Planning to take public transport? Expect a trip time of around 50 minutes.

  • Taking an early flight from Baltimore Washington International Airport to Billings Airport? Avoid rushing to the terminal (and catch some extra z's) by choosing one of these stays near BWI:

Arriving at Billings Airport (BIL)

  • If you're landing on a late Baltimore Washington International Airport to Billings Airport flight, nothing tops the convenience of being close to the terminal. Grab your suitcases from the carousel and then be showered and snoozing not long after at one of these options near BIL:

  • Get on the fast track to adventure by picking up a Billings Airport rental car. Grab your wheels from Alamo, Budget or Rent a Wreck to explore Billings and beyond.

  • Book your vehicle from Billings Airport a few weeks before your departure to get the best possible rate. If you're going away during peak season, you may want to book even earlier.

Getting from Billings Airport (BIL) to central Billings

  • BIL is located at 1901 Terminal Circle, Room 216.

  • Billings Airport is approximately 10 kilometres from the centre of Billings. Driving there takes about 15 minutes.

  • Travelling to the centre by public transport typically takes 30 minutes.

When to fly to Billings Airport (BIL)

  • The quietest month for a flight from Baltimore Washington International Airport to Billings Airport is March, while September is the most popular. Pick the best time to go to Billings based on whether you prefer a faster pace or a more relaxed vibe.

  • When booking your flight from Baltimore Washington International Airport to Billings Airport, think about the kind of weather you enjoy. July is the warmest month in Billings, with temperatures ranging from 13ºC (55ºF) to 34ºC (93ºF).

  • If you like travelling in cooler conditions, look for a cheap ticket from BWI to BIL in February. Average temperatures are between -18ºC (0ºF) and 8ºC (46ºF) then.

Explore more of the United States

  • Billings has plenty going for it, but there are so many other parts of the United States just waiting to be discovered. Around 451 kilometres south-east of Billings, a trip to Rapid City will keep you busy. Start with attractions like Dinosaur Park, President Abraham Lincoln Statue and Lakota Dream Museum and Monument.

  • Missoula is another essential stop in the United States and is around 434 kilometres west of Billings. No trip is complete without experiencing Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.