BOS - WAS

$74 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 5/13. 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
$138
Typical prices: $331-$136
Spirit Airlines
Mon 4/20Wed 4/22
BOS - BWI • Non-stop
Cheapest one-way
$76
Typical prices: $80-$165
Frontier
Wed 5/13
BOS - BWI • 1 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 $138 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
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 • 22% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 14% price drop
Most popular
Good to know
Good to know
+1
+1
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We hope you love your trip to Washington, D.C.!
Flight Deals
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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, Apr 20 - Wed, Apr 22
Spirit Airlines Logo
5:45 am - 7:11 am
BOS
-
BWI
1h 26mnonstop
Spirit Airlines Logo
9:59 pm - 11:25 pm
BWI
-
BOS
1h 26mnonstop
$138Spirit Airlines
Wed, Jul 1 - Mon, Jul 6
Spirit Airlines Logo
5:55 am - 7:35 am
BOS
-
BWI
1h 40mnonstop
Spirit Airlines Logo
6:35 am - 7:55 am
BWI
-
BOS
1h 20mnonstop
$139Spirit Airlines
Wed, May 6 - Tue, May 12
Frontier Logo
12:01 pm - 10:57 pm
BOS
-
BWI
10h 56m
1 stop
Frontier Logo
9:25 pm - 7:49 am
BWI
-
BOS
10h 24m
1 stop
$140Frontier
Mon, Apr 13 - Wed, Apr 15
JetBlue Logo
7:14 pm - 8:59 pm
BOS
-
DCA
1h 45mnonstop
JetBlue Logo
4:59 pm - 6:38 pm
DCA
-
BOS
1h 39mnonstop
$172JetBlue
Sun, May 10 - Wed, May 13
United Airlines Logo
7:28 pm - 11:25 pm
BOS
-
IAD
3h 57m
1 stop
United Airlines Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
$172United Airlines
Fri, May 8 - Fri, May 8
United Airlines Logo
5:45 am - 7:24 am
BOS
-
IAD
1h 39mnonstop
United Airlines Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
$174United Airlines
Sat, Apr 25 - Sat, May 2
JetBlue Logo
7:14 pm - 8:59 pm
BOS
-
DCA
1h 45mnonstop
JetBlue Logo
6:40 pm - 8:17 pm
DCA
-
BOS
1h 37mnonstop
$179JetBlue
Sat, May 2 - Sun, May 3
American Airlines Logo
8:00 am - 9:48 am
BOS
-
DCA
1h 48mnonstop
American Airlines Logo
7:22 am - 9:09 am
DCA
-
BOS
1h 47mnonstop
$191American Airlines
Sat, May 2 - Sun, May 3
Delta Logo
5:55 pm - 7:56 pm
BOS
-
DCA
2h 01mnonstop
Delta Logo
7:00 am - 8:43 am
DCA
-
BOS
1h 43mnonstop
$192Delta
Sat, May 2 - Sun, May 3
American Airlines Logo
8:00 am - 9:48 am
BOS
-
DCA
1h 48mnonstop
American Airlines Logo
7:22 am - 9:09 am
DCA
-
BOS
1h 47mnonstop
$193American Airlines
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 April.

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 $133 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, 22% 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 $192 (return) on average. On the other hand, the most expensive months are November and February, where the average cost of round-trip tickets is $257 and $252 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 $289, 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 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 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$76
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 3% 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 $74 for a one-way ticket and $138 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 $220 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 $252 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 $164 or less one-way and $266 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 8367 reviews
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

10.0 ExcellentLorna, Mar 2026
LAX - PDX
Read more Delta reviews

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

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

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

Flight cancelled 2 hours prior to boarding. No explanation. No refunds.

Delayed by 1.5 hours. Terrible apologies, half hearted at best. It will be a LONG time until i book w Jet Blue again. Very disappointed.

My check in was stressful. I somehow lost my seat from my original booking, the plane showed no availability/no seat when it was time to check-in. I called and was instructed to try to get a seat at the airport. I asked if it was a full flight and the travel agent said the site showed some seating but was not able to secure one for me. Why not? On my way to the airport the app finally revealed one available seat towards the back of the aircraft that I was able to book. It ended up being an overbooked flight, so glad I wasn't stuck.

Flights with JetBlue from San Diego to Boston are a miserable experience. The flight was delayed about 1.5 hours due to “weather” supposedly but the flights for other airlines left on time so it just have been some kind of weather that only affects JetBlue. I had a small carry on - purse. The crew stored it in a bin 2 rows down from me because they were using the bin next to my seat for other people’s stuff. The TV screen in the emergency row seats does not work. It just was awful from start to finish. When we landed, we had to sit inside the plane for a very long time because the plane had to be moved to a different gate.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

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.

They keep delaying and cancel at last moment and height was for you to get refund need to be in chat line for two hours. I complained to DOT. Never recommend this airline on Kayak please

First flight in along time with spirit! I’m honored to say this flight was excellent 😊

Spirit is awful. Do not fly spirit. Nothing but delays, cancellations.

Every connection was late but that meant I was not running from one to the next so that was a good thing. No one wants to miss a connection

Food and entertainment see irrelevant to rate them as that’s not really an option anymore. The flight was fast and friendly. The plane was immaculately clean.

it was great except the extra charges. for carry on ,seat choice, and wifi. these should all be included in flight charge. The extra charges are redicuolouse and because of that I will not be flying spirit again

Nothing. We didn’t even have a pilot until one hour after our flight was set to depart and now we are waiting for a gate on a very hot packed aircraft. Spirit has lost its goddamn minds and we will never fly again. On the way down the delay went from 5 minutes to 6 hours to cancelled.

We had to take a bus to the plane with a old woman and carry on bags, and at landing at the airport we have to wait one hour seating on the plane waiting for a gate. We came back from Australia Bussines class Quantas 16 hours traveling, then wait in Dallas 7 hours for connection...honestly waiting 1 hour more at the plane was the worst part.

Flight delayed twice (not Spirit fault) No food served* No entertainment * *in response to my choices in the rating. None was provided so couldn’t rate properly

Delayed over two hours. Only knew about a 30 minute delay in advance

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$5791h 26m
Trains$1657h 52m
Buses$11210h 38m