Find Deals on International Flights to Washington

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from worldwide to Washington

(Round-trip)
Depart: Wed Oct 11 2017 Return: Tue Oct 17 2017 Trip spans 7 days
JetBlue
JetBlue
BOS
IAD
3h 49m
1 stop
IAD
BOS
4h 48m
1 stop
Depart: Fri Oct 27 2017 Return: Sun Oct 29 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
BOS
IAD
1h 35m
nonstop
IAD
BOS
1h 32m
nonstop
Depart: Fri Oct 6 2017 Return: Mon Oct 9 2017 Trip spans 4 days
American Airlines
American Airlines
BOS
DCA
1h 39m
nonstop
DCA
BOS
1h 30m
nonstop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
Frontier
Frontier
SAN
IAD
6h 29m
1 stop
IAD
SAN
6h 53m
1 stop
Depart: Sat Oct 7 2017 Return: Mon Oct 9 2017 Trip spans 3 days
United
United
BOS
IAD
3h 55m
1 stop
IAD
BOS
1h 37m
nonstop
Depart: Tue Oct 31 2017 Return: Wed Nov 8 2017 Trip spans 9 days
Delta
Delta
LAX
DCA
5h 15m
nonstop
DCA
LAX
5h 45m
nonstop
Depart: Wed Sep 13 2017 Return: Tue Sep 19 2017 Trip spans 7 days
Virgin America
Virgin America
SFO
IAD
5h 02m
nonstop
IAD
SFO
5h 38m
nonstop
Depart: Fri Sep 8 2017 Return: Wed Sep 13 2017 Trip spans 6 days
JetBlue
JetBlue
BOS
IAD
1h 34m
nonstop
IAD
BOS
1h 38m
nonstop
Depart: Thu Oct 12 2017 Return: Sun Oct 15 2017 Trip spans 4 days
JetBlue
JetBlue
BOS
IAD
1h 35m
nonstop
IAD
BOS
1h 32m
nonstop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
Frontier
Frontier
SAN
IAD
6h 29m
1 stop
IAD
SAN
6h 53m
1 stop
Depart: Sat Sep 16 2017 Return: Sat Sep 23 2017 Trip spans 8 days
Frontier
Frontier
SAN
IAD
6h 20m
1 stop
IAD
SAN
7h 10m
1 stop
Depart: Thu Sep 7 2017 Return: Sun Sep 10 2017 Trip spans 4 days
JetBlue
JetBlue
BOS
IAD
1h 42m
nonstop
IAD
BOS
1h 32m
nonstop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
LAX
IAD
5h 02m
nonstop
IAD
LAX
5h 31m
nonstop
Depart: Tue Sep 12 2017 Return: Tue Sep 19 2017 Trip spans 8 days
United
United
LAX
IAD
4h 55m
nonstop
IAD
LAX
5h 28m
nonstop
Depart: Tue Oct 31 2017 Return: Sat Nov 4 2017 Trip spans 5 days
American Airlines
American Airlines
LAX
IAD
5h 04m
nonstop
IAD
LAX
5h 51m
nonstop
Depart: Mon Sep 25 2017 Return: Sun Oct 8 2017 Trip spans 14 days
Qatar Airways
Qatar Airways
KUL
IAD
30h 55m
1 stop
IAD
KUL
22h 35m
1 stop
Depart: Tue Oct 3 2017 Return: Tue Oct 10 2017 Trip spans 8 days
Frontier
Frontier
SAN
IAD
6h 20m
1 stop
IAD
SAN
7h 15m
1 stop
Depart: Fri Sep 8 2017 Return: Sun Sep 10 2017 Trip spans 3 days
JetBlue
JetBlue
BOS
DCA
1h 37m
nonstop
DCA
BOS
1h 24m
nonstop
Depart: Wed Sep 13 2017 Return: Tue Sep 19 2017 Trip spans 7 days
United
United
LAX
IAD
4h 53m
nonstop
IAD
LAX
5h 31m
nonstop
Depart: Mon Oct 2 2017 Return: Sat Nov 4 2017 Trip spans 34 days
Multiple Airlines
Multiple Airlines
LAX
IAD
5h 03m
nonstop
IAD
LAX
5h 51m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

San Francisco
$337
San Diego
$189
Los Angeles
$217
Kuala Lumpur
$437
Boston
$163
Destination

Washington
only $163
only $175
Airlines Airline reviews

310 travelers who booked a flight from Boston to Washington rated their chosen airlines with an average of 8.0.

Overall
8.2
Boarding
8.2
Crew
8.4
Comfort
7.9
Food
6.8
Entertainment
7.6