BOS - WAS

$69 Find Cheap Flights from Boston to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Washington, D.C. departing on 4/21. 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.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Washington, D.C..
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Everything you should know

Cheapest round-trip
$130
Typical prices: $275-$116
Spirit Airlines
Mon 6/22Thu 6/25
BOS - BWI • Non-stop
Cheapest one-way
$74
Typical prices: $107-$230
Spirit Airlines
Tue 4/21
BOS - BWI • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue offers free Wi-Fi for all passengers.
DCA is just 4 miles from downtown DC for easy access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $130 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Delta and others. Average duration is 1h 44m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 36% average savings
Most popular
Insights
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Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
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Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
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We hope you love your trip to Washington, D.C.!
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Expert advice
Flight Deals

Cheap Flights from Boston to Washington, D.C. (BOS-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Washington, D.C. 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 Boston to Washington, D.C.

Mon, Jun 22 - Thu, Jun 25
Spirit Airlines Logo
3:38 pm - 5:14 pm
BOS
-
BWI
1h 36mnonstop
Spirit Airlines Logo
6:09 pm - 7:46 pm
BWI
-
BOS
1h 37mnonstop
$130Spirit Airlines
Fri, May 1 - Sat, May 2
Multiple Airlines Logo
6:00 am - 3:30 pm
BOS
-
BWI
9h 30m
1 stop
Multiple Airlines Logo
4:05 pm - 5:33 pm
BWI
-
BOS
1h 28mnonstop
$132Multiple Airlines
Tue, May 5 - Tue, May 12
Frontier Logo
9:31 am - 10:57 pm
BOS
-
BWI
13h 26m
1 stop
Frontier Logo
9:13 pm - 8:44 am
BWI
-
BOS
11h 31m
1 stop
$134Frontier
Sat, May 2 - Wed, May 6
Frontier Logo
10:25 am - 4:58 pm
BOS
-
BWI
6h 33m
1 stop
Frontier Logo
8:52 am - 1:24 am
BWI
-
BOS
16h 32m
1 stop
$135Frontier
Thu, May 21 - Thu, May 28
JetBlue Logo
6:15 am - 7:55 am
BOS
-
DCA
1h 40mnonstop
JetBlue Logo
11:35 am - 1:05 pm
DCA
-
BOS
1h 30mnonstop
$169JetBlue
Thu, May 7 - Thu, May 7
JetBlue Logo
6:20 am - 7:59 am
BOS
-
DCA
1h 39mnonstop
JetBlue Logo
10:00 am - 11:33 am
DCA
-
BOS
1h 33mnonstop
$170JetBlue
Wed, May 27 - Mon, Jun 1
United Airlines Logo
5:45 am - 7:23 am
BOS
-
IAD
1h 38mnonstop
United Airlines Logo
6:33 am - 11:16 am
IAD
-
BOS
4h 43m
1 stop
$171United Airlines
Tue, Apr 28 - Fri, May 1
United Airlines Logo
5:45 am - 7:25 am
BOS
-
IAD
1h 40mnonstop
United Airlines Logo
6:00 am - 10:20 am
IAD
-
BOS
4h 20m
1 stop
$173United Airlines
Wed, May 6 - Sat, May 9
Delta Logo
9:50 pm - 11:40 pm
BOS
-
DCA
1h 50mnonstop
Delta Logo
12:00 pm - 1:44 pm
DCA
-
BOS
1h 44mnonstop
$176Delta
Wed, May 13 - Thu, May 14
Delta Logo
6:05 am - 8:00 am
BOS
-
DCA
1h 55mnonstop
Delta Logo
6:00 am - 7:41 am
DCA
-
BOS
1h 41mnonstop
$177Delta
Booking Insights

KAYAK's insights & trends for Boston to Washington, D.C. flights

Get data-powered insights and trends into flights from Boston to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Washington, D.C.?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Washington, D.C. departing in June.

What is the cheapest Boston to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Boston to Washington, D.C. costs $105 on the route between Boston (BOS) and Baltimore (BWI). Over the past month, flights between Boston (BOS) and Washington, D.C. Reagan-National Airport (DCA) were, on average, 36% cheaper than other Boston-Washington, D.C. routes. This is also the most popular route.

What’s the cheapest day of the week to fly from Boston to Washington, D.C.?

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

Your flight ticket price will generally be cheaper if you fly to Washington, D.C. on a Friday and more expensive on a Sunday. On your return trip to Boston, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Boston to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Washington, D.C. is September, where tickets cost $189 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $267 and $257 respectively.

Can I save money by flying with a layover from Boston to Washington, D.C.?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $288, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Boston to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Washington, D.C., you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Washington, D.C.

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on JetBlue and American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta, United Airlines, DCA and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

KAYAK's tips to save more on a Boston to Washington, D.C. flight

When planning a trip from Boston to Washington, D.C., there are several strategies that can help save money. Generally, the cheapest day to fly is Thursday, and the most affordable month is August.

Book Early: Tickets are generally cheaper when booked around 120 days in advance.

Cheapest Airline: Spirit Airlines typically offers the most affordable fares for this route.

Airport Selection: Opting to fly into Baltimore/Washington (BWI) can result in significant savings.

Layovers: Choosing a flight with one stop can be cheaper than a direct flight.

Expensive Months: Avoid flying in April when fares tend to be higher.

AI-powered; AI can make mistakes.

Good to know

Low seasonJanuary
Cheapest flight$74
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Boston to Baltimore

When to book flights from Boston to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Boston to Washington, D.C. 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 flights from Boston to Washington, D.C.

  • What is the cheapest flight from Boston to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Boston to Washington, D.C. was $69 for a one-way ticket and $130 for a round-trip.

  • Do I need a passport to fly between Boston and Washington, D.C.?

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

  • Which airports will I be using when flying from Boston to Washington, D.C.?

    Boston is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Boston from Boston Logan Intl and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Washington, D.C.?

    JetBlue, Delta, and American Airlines offer inflight Wi-Fi service on the Boston to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Boston to Washington, D.C.?

    The Embraer 175 is the aircraft model that flies most regularly on the Boston to Washington, D.C. flight route.

  • Which airline alliances offer flights from Boston to Washington, D.C.?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Boston and Washington, D.C., with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to Washington, D.C.?

    There are nonstop flights from Boston to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from Boston to Washington, D.C., Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Boston to Washington, D.C. are Southwest and Delta. With an average price for the route of $218 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $255 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boston to Washington, D.C.?

    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 Boston to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Boston 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 Boston to Washington, D.C.?

    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, D.C. with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Washington, D.C.?

    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, D.C. from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $147 or less one-way and $264 or less round-trip.

Prefer to fly direct from Boston to Washington, D.C.?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to Washington, D.C..
Find which airlines fly direct from Boston Logan Intl Airport to Washington, D.C., which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Washington, D.C.

Monday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Tuesday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Wednesday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Thursday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Friday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Saturday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Sunday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

See more direct flights

Direct returns

Washington, D.C. to Boston Logan Intl

Monday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Tuesday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Wednesday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Thursday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Friday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Saturday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

Sunday

American Airlines,Delta,JetBlue, +1 more

American Airlines,Delta, +2 more

See more direct flights

Reviews of the top 5 airlines serving from Boston to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Boston to Washington, D.C.. 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 Boston to Washington, D.C.? 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.
7.9
DeltaOverall score based on 8385 reviews
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
Airline reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

10.0 ExcellentBrittany, Apr 2026
DAL - ATL
Read more Delta reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It’s always a great time flying with united airlines.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

The flight crew where really good. Better then the crew from BNE to SFO

They forced me to check my hand luggage at the gate.

I specifically choose not to check bags to ensure I can proceed directly to ground transportation upon arrival. However, due to a recurring lack of cabin space, I was again forced to gate-check my rolling luggage after going through my luggage to take out electronics and batteries. This practice unilaterally changes the service agreement made at the time of purchase. JetBlue needs to find a better way to manage overhead space that honors the carry-on baggage allowance.

Still hasn’t left. Why are you asking how it was?

Flight was good wish there were more snacks options for such a long flight but stewardesses were very pleasant as was flight crew.

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

I was especially impressed without efficiently the crew got passengers on and off. One of the stewards was slightly gruff, I thought. No big deal but that's what I noticed.

Absolutely horrible. Flight was delayed 4 hours and they had no clue what was going on.

Onboard functioning wide-variety entertainment on a budget and having an open pantry is nice. Seats are not comfortable but go provide plenty of legroom for a 6'2" 260lbs man.

Even though the weather made a lot of flights become cancelled Jet Blue made the flight that was supposed to leave at 9 pm and we left at 12:15 am and I was so grateful- Thanks to the Senior Jet Blue Staff who made those decisions

Worst customer service ever experienced on the planet, dirty plane, no communication, and severe delays

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

Great experience. Good dinner and service. FA's were very nice and attentive.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

The business steward was absolutely amazing! Smiles and kindness! Wish all AA flights are like this one!

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Long long delay, no AC while delayed, gate changes, just for the most uncomfortable flight of your life.

Everything was smooth sailing. Great crew, easy flight and was surprised with an upgraded seat. Thank you all!

My first time experience with Spirit Air was not good at all.The reason i did not know to cancel 24Hrs before flight depature you do charge cancellation fee. It's ridiculous policy.Actually you should provide full voucher instead of charging cancellation fee. Confirmation Code# ZNVPHG Thanks Much , Rita S

I truly admired that the last minute flight attendants were willing to come to serve flight # 1465 and think they should be extra compensated. Doesn't have to beonetary a star a permanent position with Spirit as long as she flies etc. They were o so pleasant and accommodating. 😊😊. Please also serve water. Plain unadulterated water 💧! Invest in a filter of your own the cost of bottles are a penny on the dollar and you could have a plug on advertising with labeling. This could be hilarious "WATER TO REFREST THE SPIRIT FROM SPIRIT ITSELF!" - Free idea!😄😄😄. Anyway overall, though a tad late the flight met expectations. Thanks you Spirit, for everything.

We were delayed and the bag charge fees are very expensive.

The worst. My flight was canceled :-- by email! -- at 10pm, just 8 hours prior to departure. Normally, given the early departure time, I would've been asleep. I was lucky to be awake and to be able to take action. Even worse, it turns out that the flight wasn't canceled (confirmed because I was at the airport and saw it loading), Spirit just canceled my reservation, probably because I got such a good rate! Utterly appalling. Notably, Spirit did not inform you (Kayak) of the change, so I kept getting alerts from you.

It was my first time flying with spirit. It was amazing. I loved it.

Horrible airline .. my flight was cancel , the only offer to flight next day was no good for me , representative from spirit advise everybody to buy the new ticket from southwest airline and spirit will pay back the money we spend on new ticket but after we did this they don’t want to pay us back , .. customer service is not help anybody Chat text messages it is horrible also , robots can’t answer and help u with anything … I send the complains to head quarter in Miami and department of transportation

The ticket price are reasonable, however, they can do better with the price on the luggage. Overall, I will continue using spirit.

That this is my second time the they cancel flights and they always wait until the last minute to let people know

Everything you need to know for your flight from Boston to Washington, D.C.

Other airlines flying from Boston to Washington, D.C.

Flights from the other most popular airlines that fly from Boston to Washington, D.C. according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Compare transportation modes for Boston to Washington, D.C.

Transportation modeAverage priceAverage duration
Flights$4911h 28m
Trains$1827h 54m
Buses$11410h 35m