For a smooth departure, use the Aerotrain to navigate between terminals, but allow extra time for long walks and escalators.
Most accurate provider | CheapOair 3 stars |
---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $137 (United Airlines) |
One-way from | $69 (United Airlines) |
Popular in | May |
Cheapest in | January |
Average price | $317 |
Good round-trip deal | $230 or less |
Good one-way deal | $119 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Tue 6/3
4:00 pm-5:41 pm
Nonstop1h 41m
Boston Logan Intl
Thu 6/5
5:30 am-7:04 am
Nonstop1h 34m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Thu 6/12
6:06 pm-12:43 am
1 stop6h 37m
Boston Logan Intl
Thu 6/19
6:00 am-5:21 pm
1 stop11h 21m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Mon 6/9
3:13 pm-9:17 am
1 stop18h 04m
Boston Logan Intl
Thu 6/12
11:31 am-8:25 pm
1 stop8h 54m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Thu 6/12
11:52 am-9:25 am
1 stop21h 33m
Boston Logan Intl
Sat 6/14
12:51 pm-8:53 pm
1 stop8h 02m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Sat 5/24
6:17 pm-10:56 pm
1 stop4h 39m
Boston Logan Intl
Tue 6/3
5:20 am-12:06 pm
1 stop6h 46m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Wed 6/4
1:59 pm-7:18 pm
1 stop5h 19m
Boston Logan Intl
Mon 6/9
6:26 pm-11:59 pm
1 stop5h 33m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Mon 7/21
10:18 pm-11:59 pm
Nonstop1h 41m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Sun 7/20
6:06 pm-12:38 am
1 stop6h 32m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Fri 7/25
4:46 pm-9:46 am
1 stop17h 00m
Washington, D.C.Boston
IAD - BOS
IADBOS
Washington, D.C. Dulles Intl
Sun 6/22
11:12 am-9:25 am
1 stop22h 13m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*2 stars | |
Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Boston, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of $218). Flying from Washington, D.C. Dulles Intl Airport to Boston in July is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Washington, D.C. Dulles Intl Airport to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 33% versus a flight in the afternoon.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from IAD to BOS are scheduled on a Tuesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).
In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.
If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Crew
Boarding
Comfort
Overall
Reviews
Kim,May 2025
PIH - SLC
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$63 | Average$210 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$74 | Average$118 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$78 | Average$218 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$148 | Average$290 | FlexibilityNo cancel fee | On-time69% |