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: Sat Dec 20 2014 Return: Mon Dec 22 2014 Trip spans 3 days
United
United
EWR
4:29p
YOW
5:54p
1h 25m
nonstop
YOW
12:07p
EWR
1:59p
1h 52m
nonstop
Depart: Thu Jan 8 2015 Return: Sun Jan 11 2015 Trip spans 4 days
Porter Airlines
Porter Airlines
IAD
4:15a
YOW
9:46a
5h 31m
1 stop
YOW
4:00a
IAD
7:40a
3h 40m
1 stop
Depart: Wed Feb 11 2015 Return: Wed Feb 18 2015 Trip spans 8 days
American Airlines
American Airlines
RDU
12:59p
YOW
5:10p
4h 11m
1 stop
YOW
2:20a
RDU
6:35p
16h 15m
1 stop
Depart: Wed Mar 4 2015 Return: Thu Mar 5 2015 Trip spans 2 days
Air Canada
Air Canada
BOS
3:25p
YOW
4:16a
12h 51m
1 stop
YOW
7:55a
BOS
11:55a
4h 00m
1 stop
Depart: Sat Feb 14 2015 Return: Mon Feb 16 2015 Trip spans 3 days
WestJet
WestJet
LGA
2:30a
YOW
4:07a
25h 37m
1 stop
YOW
4:45a
LGA
8:56a
4h 11m
1 stop
Depart: Wed Jan 21 2015 Return: Mon Jan 26 2015 Trip spans 6 days
American Airlines
American Airlines
MIA
8:15a
YOW
5:10p
8h 55m
1 stop
YOW
2:20a
MIA
1:22p
11h 02m
1 stop
Depart: Tue Dec 23 2014 Return: Sat Jan 3 2015 Trip spans 12 days
American Airlines
American Airlines
FLL
9:55a
YOW
5:15p
7h 20m
1 stop
YOW
2:20a
FLL
9:08p
18h 48m
1 stop
Depart: Sun Dec 21 2014 Return: Sun Jan 4 2015 Trip spans 15 days
Delta
Delta
ATL
1:55p
YOW
4:22p
2h 27m
nonstop
YOW
12:15a
ATL
3:21a
3h 06m
nonstop
Depart: Sat Jan 31 2015 Return: Sat Feb 7 2015 Trip spans 8 days
Porter Airlines
Porter Airlines
MDW
3:00a
YOW
7:41a
4h 41m
1 stop
YOW
7:55a
MDW
12:10p
4h 15m
1 stop
Depart: Wed May 6 2015 Return: Fri May 8 2015 Trip spans 3 days
US Airways
US Airways
BWI
2:00a
YOW
6:55a
4h 55m
1 stop
YOW
7:30a
BWI
5:10p
9h 40m
1 stop
Depart: Mon Feb 23 2015 Return: Tue Feb 24 2015 Trip spans 2 days
United
United
DTW
1:24p
YOW
5:32p
4h 08m
1 stop
YOW
2:30a
DTW
8:13a
5h 43m
1 stop
Depart: Tue Feb 17 2015 Return: Tue Feb 24 2015 Trip spans 8 days
Air Canada
Air Canada
TPA
2:45a
YOW
8:16a
5h 31m
1 stop
YOW
11:00a
TPA
4:52p
5h 52m
1 stop
Depart: Sat Jun 13 2015 Return: Sun Jun 14 2015 Trip spans 2 days
American Airlines
American Airlines
HVN
8:43a
YOW
3:53p
7h 10m
1 stop
YOW
2:35a
HVN
8:18a
5h 43m
1 stop
Depart: Fri Apr 17 2015 Return: Mon Apr 20 2015 Trip spans 4 days
American Airlines
American Airlines
ABE
2:00a
YOW
6:55a
4h 55m
1 stop
YOW
7:30a
ABE
2:23p
6h 53m
1 stop
Depart: Sun Mar 1 2015 Return: Sun Mar 8 2015 Trip spans 7 days
Air Canada
Air Canada
MSP
1:05a
YOW
5:16a
4h 11m
1 stop
YOW
8:00a
MSP
1:00p
5h 00m
1 stop
Depart: Mon Mar 23 2015 Return: Fri Mar 27 2015 Trip spans 5 days
Delta
Delta
DCA
3:00p
YOW
7:24p
4h 24m
1 stop
YOW
12:45p
DCA
5:04p
4h 19m
1 stop
Depart: Wed Feb 25 2015 Return: Mon Mar 30 2015 Trip spans 33 days
United
United
SEA
2:44a
YOW
10:35a
7h 51m
1 stop
YOW
12:20p
SEA
11:45p
11h 25m
2 stops
Depart: Mon Mar 9 2015 Return: Sat Mar 14 2015 Trip spans 6 days
United
United
PIT
2:01a
YOW
5:36a
3h 35m
1 stop
YOW
3:24p
PIT
7:05p
3h 41m
1 stop
Depart: Tue Feb 10 2015 Return: Sun Feb 15 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
LAX
7:35p
YOW
2:10p
18h 35m
1 stop
YOW
1:40a
LAX
6:21p
16h 41m
2 stops
Depart: Sat Jun 6 2015 Return: Sun Jun 7 2015 Trip spans 2 days
United
United
BDL
3:15p
YOW
5:37a
14h 22m
1 stop
YOW
1:34p
BDL
6:59p
5h 25m
1 stop
Change your search
Airports
Origin

Allentown
$385
Detroit
$371
Seattle
$443
Raleigh
$273
Chicago
$348
Fort Lauderdale
$307
Washington
only $271
only $405
Miami
$294
New York City
$291
New Haven
$380
Baltimore
$351
Minneapolis
$402
Atlanta
$342
Los Angeles
$453
Hartford
$468
Newark
$235
Tampa
$372
Boston
$285
Pittsburgh
$446
Destination

Ottawa
$235