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£70 Cheap Flights from Washington (IAD) to Boston (BOS)

View £70 flight on Wed, 2 Dec 2026Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Logan International Airport (BOS)

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Cheap Flights from Washington (IAD) to Boston (BOS)

Prices were available within the past 7 days and start at £70 for one-way flights and £213 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 19 Aug - Fri, 21 Aug
IAD
Washington
BOS
Boston
£213 Return, found 5 days ago
£213
Return
found 5 days ago
Select American Airlines flight, departing Wed, 19 Aug from Washington to Boston, returning Fri, 21 Aug, priced at £213 found 5 days ago
United
Wed, 19 Aug - Fri, 21 Aug
IAD
Washington
BOS
Boston
£228 Return, found 5 days ago
£228
Return
found 5 days ago
Select United flight, departing Wed, 19 Aug from Washington to Boston, returning Fri, 21 Aug, priced at £228 found 5 days ago
Delta
Fri, 7 Aug - Mon, 10 Aug
IAD
Washington
BOS
Boston
£228 Return, found 5 days ago
£228
Return
found 5 days ago
Select Delta flight, departing Fri, 7 Aug from Washington to Boston, returning Mon, 10 Aug, priced at £228 found 5 days ago
United
Thu, 6 Aug - Wed, 12 Aug
IAD
Washington
BOS
Boston
£232 Return, found 5 days ago
£232
Return
found 5 days ago
Select United flight, departing Thu, 6 Aug from Washington to Boston, returning Wed, 12 Aug, priced at £232 found 5 days ago
United
Wed, 19 Aug - Fri, 21 Aug
IAD
Washington
BOS
Boston
£235 Return, found 5 days ago
£235
Return
found 5 days ago
Select United flight, departing Wed, 19 Aug from Washington to Boston, returning Fri, 21 Aug, priced at £235 found 5 days ago
American Airlines
Tue, 11 Aug - Wed, 12 Aug
IAD
Washington
BOS
Boston
£238 Return, found 3 hours ago
£238
Return
found 3 hours ago
Select American Airlines flight, departing Tue, 11 Aug from Washington to Boston, returning Wed, 12 Aug, priced at £238 found 3 hours ago
United
Wed, 19 Aug - Fri, 21 Aug
IAD
Washington
BOS
Boston
£242 Return, found 5 days ago
£242
Return
found 5 days ago
Select United flight, departing Wed, 19 Aug from Washington to Boston, returning Fri, 21 Aug, priced at £242 found 5 days ago
American Airlines
Wed, 19 Aug - Fri, 21 Aug
IAD
Washington
BOS
Boston
£246 Return, found 5 days ago
£246
Return
found 5 days ago
Select American Airlines flight, departing Wed, 19 Aug from Washington to Boston, returning Fri, 21 Aug, priced at £246 found 5 days ago
United
Fri, 7 Aug - Mon, 10 Aug
IAD
Washington
BOS
Boston
£248 Return, found 5 days ago
£248
Return
found 5 days ago
Select United flight, departing Fri, 7 Aug from Washington to Boston, returning Mon, 10 Aug, priced at £248 found 5 days ago
Alaska Airlines
Sat, 12 Sept - Tue, 15 Sept
IAD
Washington
BOS
Boston
£443 Return, found 1 day ago
£443
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 12 Sept from Washington to Boston, returning Tue, 15 Sept, priced at £443 found 1 day ago

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city centre is 7 minutes. Flights from £238
BOS
Logan Intl.
CheapestClosest
Average driving time to city centre7 min
Flights from £238

Find the cheapest month to fly from Washington (IAD) to Boston (BOS)

July is typically the cheapest month to fly

From £87 - £189 per traveller.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Boston, MA (BOS-Logan Intl.) cost?
You can find cheap one-way flights from £70 and cheap return flights from £213 IAD to BOS with Expedia. One-way flights typically cost between £114 and £308. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to BOS ticket fares go up or down.
What is the cheapest month to fly from Washington, DC (IAD) to Boston, MA (BOS)?
The cheapest months to fly from Washington, DC (IAD) to Boston, MA (BOS) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD) to Boston, MA (BOS)?
Enter IAD to BOS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Washington, DC (IAD) to Boston, MA (BOS)?
To find a cheap flight from Washington, DC (IAD) to Boston, MA (BOS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Boston, MA (BOS-Logan Intl.)?
The best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Boston, MA (BOS-Logan Intl.) really depends on what you're looking for! You'll find the cheapest flights in February and March, with average prices around £165 for a return flight. These months are great if you're prioritizing savings. If you're looking for the most flight options and a popular time to travel, October and May are typically the busiest months. While these might not be the absolute cheapest, they offer a wide selection of flights, which can be convenient for planning your trip.
What is the earliest flight from Washington, DC (IAD) to Boston, MA (BOS)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Washington, DC (IAD) to Boston, MA (BOS). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Boston, MA (BOS-Logan Intl.)?
Flying nonstop from IAD to BOS takes around 1 hour 50 minutes, with the route covering approximately 661 kilometers. Flights with a layover typically take 4 hours 10 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD) to Boston, MA (BOS)?
Select the "Business class" and "First class" filters when looking for Washington, DC (IAD) to Boston, MA (BOS) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (IAD) to Boston, MA (BOS) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD) to Boston, MA (BOS) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Washington, DC (IAD) to Boston, MA (BOS) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD) to Boston, MA (BOS) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD) to Boston, MA (BOS) flight and hotel package?
Securing a Washington, DC (IAD) to Boston, MA (BOS) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD) to Boston, MA (BOS)?
If you booked your Washington, DC (IAD) to Boston, MA (BOS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines
Return price
£212
Distance
657 km
Average flight time
2 hours 40 mins

Book with confidence

Compare flights from Washington to Boston easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Boston. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Logan Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Logan Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Logan Intl. (BOS)

The easiest way to view the best deals on flights from Washington to Boston today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Logan Intl. start at just £213 and range up to £443.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and Boston
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Washington to Boston flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Logan Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Washington to Boston easily and book with confidence

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*Available to Expedia members.