Find Flight Deals from United States to Ottawa

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Ottawa

(Round-trip)
Depart: Mon Jan 12 2015 Return: Tue Jan 13 2015 Trip spans 2 days
Porter Airlines
Porter Airlines
IAD
4:15a
YOW
7:31a
3h 16m
1 stop
YOW
10:00a
IAD
3:00p
5h 00m
1 stop
Depart: Fri Jan 30 2015 Return: Sun Feb 1 2015 Trip spans 3 days
Porter Airlines
Porter Airlines
EWR
2:30a
YOW
8:26a
5h 56m
1 stop
YOW
11:20a
EWR
5:00p
5h 40m
1 stop
Depart: Sat Jan 10 2015 Return: Sun Jan 11 2015 Trip spans 2 days
WestJet
WestJet
LGA
2:30a
YOW
8:01a
5h 31m
1 stop
YOW
4:45a
LGA
11:06a
6h 21m
1 stop
Depart: Tue Jan 20 2015 Return: Wed Jan 21 2015 Trip spans 2 days
American Airlines
American Airlines
BWI
1:50p
YOW
6:02a
16h 12m
1 stop
YOW
6:37a
BWI
11:02a
4h 25m
1 stop
Depart: Wed Feb 4 2015 Return: Mon Feb 9 2015 Trip spans 6 days
American Airlines
American Airlines
MCO
1:30a
YOW
6:02a
4h 32m
1 stop
YOW
2:20a
MCO
11:25a
9h 05m
1 stop
Depart: Fri Jan 23 2015 Return: Sun Feb 1 2015 Trip spans 10 days
United
United
RDU
6:07a
YOW
11:35a
5h 28m
1 stop
YOW
12:29p
RDU
5:31p
5h 02m
1 stop
Depart: Thu Jan 8 2015 Return: Tue Jan 13 2015 Trip spans 6 days
American Airlines
American Airlines
FLL
1:00a
YOW
6:02a
5h 02m
1 stop
YOW
2:20a
FLL
11:35a
9h 15m
1 stop
Depart: Fri Dec 26 2014 Return: Wed Dec 31 2014 Trip spans 6 days
United
United
TPA
4:48a
YOW
11:25a
6h 37m
1 stop
YOW
9:28a
TPA
3:17p
5h 49m
1 stop
Depart: Wed Jan 28 2015 Return: Sun Feb 1 2015 Trip spans 5 days
American Airlines
American Airlines
BOS
2:00a
YOW
6:02a
4h 02m
1 stop
YOW
6:37a
BOS
1:30p
6h 53m
1 stop
Depart: Tue Mar 10 2015 Return: Tue Mar 24 2015 Trip spans 15 days
United
United
PBI
3:58a
YOW
8:57a
4h 59m
1 stop
YOW
12:44p
PBI
6:28p
5h 44m
1 stop
Depart: Thu Dec 25 2014 Return: Wed Dec 31 2014 Trip spans 7 days
American Airlines
American Airlines
BDL
10:30a
YOW
2:19p
3h 49m
1 stop
YOW
3:35a
BDL
7:42a
4h 07m
1 stop
Depart: Sat Jun 13 2015 Return: Tue Jun 16 2015 Trip spans 4 days
WestJet
WestJet
JFK
1:55p
YOW
12:05p
22h 10m
1 stop
YOW
2:45a
JFK
1:00p
10h 15m
1 stop
Depart: Thu Feb 12 2015 Return: Mon Feb 16 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ATL
3:35a
YOW
2:45p
11h 10m
1 stop
YOW
12:24p
ATL
5:33p
5h 09m
1 stop
Depart: Mon Jan 19 2015 Return: Thu Jan 22 2015 Trip spans 4 days
American Airlines
American Airlines
MKE
11:09a
YOW
4:10p
5h 01m
1 stop
YOW
6:37a
MKE
12:31p
5h 54m
1 stop
Depart: Sat Jan 24 2015 Return: Sat Jan 31 2015 Trip spans 8 days
American Airlines
American Airlines
SEA
6:50p
YOW
12:04p
17h 14m
2 stops
YOW
1:25a
SEA
4:04p
14h 39m
2 stops
Depart: Fri Mar 27 2015 Return: Sun Mar 29 2015 Trip spans 3 days
Air Canada
Air Canada
MSP
7:15a
YOW
12:16p
5h 01m
1 stop
YOW
6:00a
MSP
12:52p
6h 52m
1 stop
Depart: Mon Mar 2 2015 Return: Thu Mar 5 2015 Trip spans 4 days
United
United
AUS
1:20a
YOW
10:34a
9h 14m
1 stop
YOW
11:54a
AUS
6:55p
7h 01m
1 stop
Depart: Sat Jun 6 2015 Return: Mon Jun 8 2015 Trip spans 3 days
Porter Airlines
Porter Airlines
MDW
4:00a
YOW
10:26a
6h 26m
1 stop
YOW
7:35a
MDW
1:15p
5h 40m
1 stop
Depart: Sat Apr 4 2015 Return: Fri Apr 10 2015 Trip spans 7 days
US Airways
US Airways
DCA
2:00a
YOW
6:55a
4h 55m
1 stop
YOW
2:35a
DCA
6:59a
4h 24m
1 stop
Depart: Wed Apr 8 2015 Return: Wed May 13 2015 Trip spans 36 days
United
United
DFW
5:50a
YOW
11:20a
5h 30m
1 stop
YOW
5:55a
DFW
12:00p
6h 05m
1 stop
Change your search
Airports
Origin

Milwaukee
$385
Seattle
$398
Raleigh
$306
Chicago
$449
Fort Lauderdale
$309
Austin
$420
Washington
only $271
only $458
New York City
only $360
only $272
West Palm Beach
$347
Baltimore
$281
Minneapolis
$408
Atlanta
$363
Orlando
$299
Hartford
$349
Newark
$271
Dallas
$471
Tampa
$345
Boston
$345
Destination

Ottawa
$271