Find Deals on International Flights from Washington Dulles Intl

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 Washington Dulles Intl to worldwide

(Round-trip)
Depart: Mon Jun 5 2017 Return: Wed Jun 7 2017 Trip spans 3 days
Major Airline
Major Airline
IAD
BOS
1h 32m
nonstop
BOS
IAD
1h 44m
nonstop
Depart: Sat Jul 29 2017 Return: Fri Aug 4 2017 Trip spans 7 days
United
United
IAD
BOS
1h 38m
nonstop
BOS
IAD
1h 32m
nonstop
Depart: Thu Nov 30 2017 Return: Sat Dec 2 2017 Trip spans 3 days
JetBlue
JetBlue
IAD
BOS
6h 32m
1 stop
BOS
IAD
6h 24m
1 stop
Depart: Tue Jul 4 2017 Return: Tue Jul 11 2017 Trip spans 8 days
Frontier
Frontier
IAD
DEN
3h 54m
nonstop
DEN
IAD
3h 21m
nonstop
Depart: Thu Aug 31 2017 Return: Tue Sep 5 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
BOS
1h 29m
nonstop
BOS
IAD
1h 39m
nonstop
Depart: Sun Jul 9 2017 Return: Wed Jul 12 2017 Trip spans 4 days
Major Airline
Major Airline
IAD
BOS
1h 36m
nonstop
BOS
IAD
1h 39m
nonstop
Depart: Wed Aug 23 2017 Return: Tue Sep 5 2017 Trip spans 14 days
Virgin America
Virgin America
IAD
LAX
5h 37m
nonstop
LAX
IAD
4h 58m
nonstop
Depart: Wed Jul 12 2017 Return: Fri Jul 14 2017 Trip spans 3 days
Major Airline
Major Airline
IAD
BOS
1h 36m
nonstop
BOS
IAD
1h 39m
nonstop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
United
United
IAD
BOS
1h 37m
nonstop
BOS
IAD
1h 43m
nonstop
Depart: Tue Aug 15 2017 Return: Mon Aug 28 2017 Trip spans 14 days
American Airlines
American Airlines
IAD
SFO
7h 40m
1 stop
SFO
IAD
7h 20m
1 stop
Depart: Wed Sep 6 2017 Return: Sun Sep 10 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
BOS
1h 32m
nonstop
BOS
IAD
1h 42m
nonstop
Depart: Tue Sep 26 2017 Return: Mon Oct 2 2017 Trip spans 7 days
Delta
Delta
IAD
PDX
9h 58m
1 stop
PDX
IAD
6h 56m
1 stop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
United
United
IAD
BOS
1h 40m
nonstop
BOS
IAD
1h 41m
nonstop
Depart: Thu Sep 28 2017 Return: Sun Oct 1 2017 Trip spans 4 days
Icelandair
Icelandair
IAD
CDG
10h 25m
1 stop
CDG
IAD
10h 45m
1 stop
Depart: Thu Jun 29 2017 Return: Tue Jul 4 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
BOS
1h 35m
2 stops
BOS
IAD
1h 36m
2 stops
Depart: Sat Sep 9 2017 Return: Sun Sep 10 2017 Trip spans 2 days
JetBlue
JetBlue
IAD
BOS
1h 38m
nonstop
BOS
IAD
1h 35m
nonstop
Depart: Wed Oct 4 2017 Return: Wed Oct 11 2017 Trip spans 8 days
United
United
IAD
BOS
1h 30m
nonstop
BOS
IAD
1h 41m
nonstop
Depart: Mon Jul 17 2017 Return: Tue Jul 25 2017 Trip spans 9 days
Frontier
Frontier
IAD
DEN
3h 58m
nonstop
DEN
IAD
3h 21m
nonstop
Depart: Tue Jul 18 2017 Return: Sat Jul 22 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
BOS
1h 36m
nonstop
BOS
IAD
1h 41m
nonstop
Depart: Wed Aug 9 2017 Return: Sun Aug 13 2017 Trip spans 5 days
JetBlue
JetBlue
IAD
BOS
1h 29m
nonstop
BOS
IAD
1h 34m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
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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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Washington
$102
Destination

San Francisco
$333
Portland
$344
Los Angeles
$287
Denver
$208
Paris
$376
Boston
$102