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243 € Cheap Flights from Boise to Baltimore Washington International

Compare Boise to Baltimore Washington International flight deals

Find the cheapest month or even day of the year to fly to Baltimore Washington International

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Flight deals from Boise to Baltimore Washington International

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Baltimore Washington International Airport? If you want to travel next month, return fares start from 256 €. Find the lowest prices on one-way and return tickets right here.
Washington D.C..243 € per passenger.Departing Tue, 15 Sep, returning Tue, 22 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Tue, 15 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 22 Sep, arriving in Boise.Price includes taxes and charges.From 243 €, select.
Washington D.C..256 € per passenger.Departing Thu, 27 Aug, returning Mon, 31 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Thu, 27 Aug, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 31 Aug, arriving in Boise.Price includes taxes and charges.From 256 €, select.
Washington D.C..256 € per passenger.Departing Mon, 26 Oct, returning Tue, 3 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Mon, 26 Oct, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 3 Nov, arriving in Boise.Price includes taxes and charges.From 256 €, select.
Washington D.C..261 € per passenger.Departing Wed, 30 Sep, returning Tue, 6 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Wed, 30 Sep, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 6 Oct, arriving in Boise.Price includes taxes and charges.From 261 €, select.
Washington D.C..265 € per passenger.Departing Thu, 15 Oct, returning Wed, 21 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Thu, 15 Oct, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 21 Oct, arriving in Boise.Price includes taxes and charges.From 265 €, select.
Washington D.C..294 € per passenger.Departing Fri, 16 Apr, returning Mon, 19 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Fri, 16 Apr, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 19 Apr, arriving in Boise.Price includes taxes and charges.From 294 €, select.
Washington D.C..302 € per passenger.Departing Sat, 26 Dec, returning Sun, 3 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Sat, 26 Dec, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Sun, 3 Jan, arriving in Boise.Price includes taxes and charges.From 302 €, select.
Washington D.C..310 € per passenger.Departing Mon, 31 Aug, returning Mon, 7 Sep.Return flight with United.Outbound indirect flight with United, departs from Boise on Mon, 31 Aug, arriving in Baltimore Washington International.Inbound indirect flight with United, departs from Baltimore Washington International on Mon, 7 Sep, arriving in Boise.Price includes taxes and charges.From 310 €, select.
Washington D.C..324 € per passenger.Departing Thu, 18 Mar, returning Mon, 22 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Boise on Thu, 18 Mar, arriving in Baltimore Washington International.Inbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 22 Mar, arriving in Boise.Price includes taxes and charges.From 324 €, select.
Washington D.C..456 € per passenger.Departing Wed, 23 Dec, returning Sat, 26 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Boise on Wed, 23 Dec, arriving in Baltimore Washington International.Inbound indirect flight with Southwest Airlines, departs from Baltimore Washington International on Sat, 26 Dec, arriving in Boise.Price includes taxes and charges.From 456 €, select.
Washington D.C..493 € per passenger.Departing Thu, 30 Jul, returning Tue, 4 Aug.Return flight with Sun Country Airlines and Frontier Airlines.Outbound indirect flight with Sun Country Airlines, departs from Boise on Thu, 30 Jul, arriving in Baltimore Washington International.Inbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 4 Aug, arriving in Boise.Price includes taxes and charges.From 493 €, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Baltimore Washington International flights are currently cheapest in September.
Jul
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Aug
from 256 €
Sep
from 243 €
Oct
from 265 €
Nov
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Dec
from 456 €
Jan
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Feb
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Mar
from 324 €
Apr
from 294 €
May
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Jun
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Boise to Baltimore Washington International: Alternative routes

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

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from 210 €
Search flights

Washington Dulles

37km from central Washington D.C.
from 253 €
Search flights

Baltimore Washington International

44km from central Washington D.C.
from 243 €
Search flights

Boise to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found243 €
Cheapest month to flySeptember

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

The best price we found for a return flight from Boise to Baltimore Washington International is 243 €. 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 Boise to Baltimore Washington International. But we found flights with one or more stops from 243 €.
As of July 2026, there are no flights flying from Boise to Baltimore Washington International.
The cheapest month to fly from Boise to Baltimore Washington International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Baltimore Washington International Airport on Tuesday, 15 September 2026.
No airlines currently offer direct flights between Boise Airport and Baltimore Washington International 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 Baltimore Washington International 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 Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines offers the cheapest flight tickets to Baltimore Washington International.

Flying from Boise Airport (BOI) to Baltimore Washington International Airport (BWI): what you need to know

  • Washington DC's timezone is UTC-5, making Washington DC two hours ahead of Boise.

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

  • Travelling during a peak month like October? Public holidays and other high seasons can result in longer queues at check-in and security. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Boise Airport to Baltimore Washington International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to tour your chosen city. Some great stopovers between BOI and BWI include:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Boise Airport (BOI) to Baltimore Washington International Airport (BWI)

  • The cheapest price we've seen for a one-way Boise Airport to Baltimore Washington International Airport flight is 128 €. A round-trip fare is currently 243 €. Depending on the availability and when you book, these fares may change.

  • To find cheap tickets from BOI to BWI, book as early as you can. Airlines typically offer their most competitively priced fares when flights are first made available.

  • The 'Whole month' search function shows you the cheapest flights from Boise Airport to Baltimore Washington International Airport across the entire month. It's a great way to find a bargain if your plans are flexible.

  • You don't need to check every day to find out if fares have gone down when you create a Price Alert. We'll notify you as soon as there's a better deal on cheap flights from BOI to BWI.

  • Tailor your flights using filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Boise Airport to Baltimore Washington International Airport.

Handy information about Boise Airport (BOI)

  • BOI is located at 3201 Airport Way.

  • Boise Airport has a strong on-time performance, reducing the likelihood of delays. Departures from BOI arrive on schedule 84% of the time.

  • To reach Boise Airport from central Boise, it takes around 15 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 6 kilometres from the airport to the city centre.

  • You can expect a journey time of around 30 minutes when using public transport.

  • Have an early flight from Boise Airport to Baltimore Washington International Airport? Avoid rushing to the terminal (and catch some extra z's) by picking one of these stays close to BOI:

Arriving at Baltimore Washington International Airport (BWI)

When to fly to Baltimore Washington International Airport (BWI)

  • July is the most popular month for flights from Boise Airport to Baltimore Washington International Airport. For a quieter experience, travel to Washington DC in March.

  • When reserving your flight from Boise Airport to Baltimore Washington International Airport, consider the type of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • Search for cheap tickets from BOI to BWI in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • Washington DC has its own special appeal, but there are so many other parts of the United States just waiting to be discovered. Around 322 kilometres north-east of Washington DC, a trip to New York will keep your itinerary busy. Start with leading attractions like Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another favourite stop in the United States. Experience the best of this destination with a visit to Independence Hall, Liberty Bell and Philadelphia Museum of Art.

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