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: Fri Jan 30 2015 Return: Tue Feb 3 2015 Trip spans 5 days
Porter Airlines
Porter Airlines
IAD
4:15a
YOW
8:26a
4h 11m
1 stop
YOW
10:00a
IAD
3:00p
5h 00m
1 stop
Depart: Wed Feb 4 2015 Return: Sat Feb 7 2015 Trip spans 4 days
Porter Airlines
Porter Airlines
EWR
7:00a
YOW
11:56a
4h 56m
1 stop
YOW
3:00a
EWR
7:15a
4h 15m
1 stop
Depart: Tue Jan 20 2015 Return: Wed Feb 4 2015 Trip spans 16 days
American Airlines
American Airlines
RDU
9:35a
YOW
5:10p
7h 35m
1 stop
YOW
2:20a
RDU
7:09a
4h 49m
1 stop
Depart: Mon Jan 12 2015 Return: Tue Jan 13 2015 Trip spans 2 days
American Airlines
American Airlines
LGA
1:40p
YOW
6:02a
16h 22m
1 stop
YOW
6:37a
LGA
12:00p
5h 23m
1 stop
Depart: Thu Feb 5 2015 Return: Mon Feb 9 2015 Trip spans 5 days
Air Canada
Air Canada
MIA
7:15a
YOW
3:16p
8h 01m
1 stop
YOW
7:55a
MIA
3:49p
7h 54m
1 stop
Depart: Mon Dec 29 2014 Return: Tue Jan 6 2015 Trip spans 9 days
American Airlines
American Airlines
FLL
11:55a
YOW
5:34p
5h 39m
1 stop
YOW
1:25a
FLL
8:06a
6h 41m
1 stop
Depart: Wed Jan 28 2015 Return: Thu Jan 29 2015 Trip spans 2 days
American Airlines
American Airlines
BOS
12:00p
YOW
6:02a
18h 02m
1 stop
YOW
6:37a
BOS
10:59a
4h 22m
1 stop
Depart: Sat Jan 24 2015 Return: Mon Jan 26 2015 Trip spans 3 days
American Airlines
American Airlines
BDL
2:15a
YOW
6:02a
3h 47m
1 stop
YOW
1:25a
BDL
7:42a
6h 17m
1 stop
Depart: Thu Jan 8 2015 Return: Thu Jan 15 2015 Trip spans 8 days
US Airways
US Airways
MHT
1:55a
YOW
6:02a
4h 07m
1 stop
YOW
1:25a
MHT
6:03a
4h 38m
1 stop
Depart: Sat Feb 7 2015 Return: Sun Feb 15 2015 Trip spans 9 days
US Airways
US Airways
PVD
2:00a
YOW
6:02a
4h 02m
1 stop
YOW
6:37a
PVD
12:07p
5h 30m
1 stop
Depart: Sun Jan 25 2015 Return: Thu Jan 29 2015 Trip spans 5 days
American Airlines
American Airlines
PIT
12:30a
YOW
6:02a
5h 32m
1 stop
YOW
1:25a
PIT
8:19a
6h 54m
1 stop
Depart: Tue Feb 3 2015 Return: Fri Feb 6 2015 Trip spans 4 days
United
United
TPA
8:57a
YOW
1:26p
4h 29m
1 stop
YOW
9:23a
TPA
3:09p
5h 46m
1 stop
Depart: Sun Jan 18 2015 Return: Wed Jan 21 2015 Trip spans 4 days
United
United
MCO
8:49a
YOW
1:26p
4h 37m
1 stop
YOW
9:23a
MCO
2:25p
5h 02m
1 stop
Depart: Fri May 22 2015 Return: Tue May 26 2015 Trip spans 5 days
US Airways
US Airways
BWI
2:00a
YOW
6:55a
4h 55m
1 stop
YOW
2:35a
BWI
10:11a
7h 36m
1 stop
Depart: Sat Apr 4 2015 Return: Tue Apr 7 2015 Trip spans 4 days
United
United
DTW
3:25p
YOW
7:18p
3h 53m
1 stop
YOW
1:34p
DTW
6:05p
4h 31m
1 stop
Depart: Fri Mar 6 2015 Return: Sun Mar 8 2015 Trip spans 2 days
United
United
MKE
2:32a
YOW
6:57a
4h 25m
1 stop
YOW
12:44p
MKE
7:30p
6h 46m
1 stop
Depart: Mon Mar 23 2015 Return: Thu Mar 26 2015 Trip spans 4 days
United
United
MSP
3:18a
YOW
10:45a
7h 27m
1 stop
YOW
2:04a
MSP
9:30a
7h 26m
1 stop
Depart: Wed Jun 10 2015 Return: Sun Jun 14 2015 Trip spans 5 days
Air Canada
Air Canada
AUS
1:20p
YOW
8:33p
7h 13m
1 stop
YOW
8:00a
AUS
1:45p
5h 45m
1 stop
Depart: Wed Feb 25 2015 Return: Wed Mar 4 2015 Trip spans 8 days
Multiple Airlines
Multiple Airlines
LAX
9:05a
YOW
5:36p
8h 31m
1 stop
YOW
1:20a
LAX
10:37a
9h 17m
1 stop
Depart: Tue Feb 17 2015 Return: Fri Feb 20 2015 Trip spans 4 days
United
United
ORD
1:37a
YOW
3:24a
1h 47m
nonstop
YOW
12:32p
ORD
2:55p
2h 23m
nonstop
Change your search
Airports
Origin

Milwaukee
$385
Detroit
$377
Providence
$342
Raleigh
$273
Chicago
$442
Fort Lauderdale
$310
Austin
$413
Washington
$260
Miami
$308
New York City
$275
Baltimore
$351
Minneapolis
$396
Orlando
$347
Manchester
$342
Los Angeles
$417
Hartford
$327
Newark
$260
Tampa
$345
Boston
$311
Pittsburgh
$345
Destination

Ottawa
$260