Find Deals on Flights from Portland to Williston Sloulin Field Intl (PDX - ISN)

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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Book cheap flights from Portland to Williston Sloulin Field Intl

(Round-trip)
Depart: Wed Mar 8 2017 Return: Wed Mar 15 2017 Trip spans 7 days
United
United
PDX
10:43a
ISN
3:51p
5h 08m
1 stop
ISN
1:17p
PDX
6:33p
5h 16m
1 stop
Depart: Tue Mar 14 2017 Return: Tue Mar 21 2017 Trip spans 8 days
Delta
Delta
PDX
2:00a
ISN
6:04a
28h 04m
2 stops
ISN
8:30a
PDX
9:32p
13h 02m
2 stops
Depart: Tue Apr 11 2017 Return: Fri Apr 14 2017 Trip spans 4 days
United
United
PDX
1:15a
ISN
6:58a
5h 43m
1 stop
ISN
1:15p
PDX
6:58p
5h 43m
1 stop
Depart: Sat May 27 2017 Return: Mon Jun 5 2017 Trip spans 10 days
United
United
PDX
1:45a
ISN
6:49a
5h 04m
1 stop
ISN
1:15p
PDX
6:29p
5h 14m
1 stop
Depart: Wed Mar 22 2017 Return: Wed Mar 29 2017 Trip spans 8 days
Delta
Delta
PDX
2:00a
ISN
6:04a
28h 04m
2 stops
ISN
8:30a
PDX
6:14p
9h 44m
1 stop
Depart: Sun May 28 2017 Return: Mon Jun 5 2017 Trip spans 9 days
United
United
PDX
1:45a
ISN
6:49a
5h 04m
1 stop
ISN
1:15p
PDX
6:29p
5h 14m
1 stop
Depart: Thu Mar 9 2017 Return: Fri Mar 17 2017 Trip spans 8 days
Delta
Delta
PDX
7:48p
ISN
5:04a
9h 16m
1 stop
ISN
8:30a
PDX
6:14p
9h 44m
1 stop
Depart: Fri Mar 10 2017 Return: Fri Mar 17 2017 Trip spans 7 days
United
United
PDX
10:40a
ISN
3:49p
5h 09m
1 stop
ISN
9:35a
PDX
2:54p
5h 19m
1 stop
Depart: Thu May 25 2017 Return: Mon Jun 5 2017 Trip spans 12 days
United
United
PDX
1:45a
ISN
6:49a
5h 04m
1 stop
ISN
1:15p
PDX
6:29p
5h 14m
1 stop
Depart: Sat Feb 25 2017 Return: Tue Feb 28 2017 Trip spans 4 days
United
United
PDX
12:20a
ISN
6:03a
5h 43m
1 stop
ISN
12:17p
PDX
6:08p
5h 51m
1 stop
Depart: Fri May 26 2017 Return: Mon Jun 5 2017 Trip spans 11 days
United
United
PDX
1:45a
ISN
6:49a
5h 04m
1 stop
ISN
1:15p
PDX
6:29p
5h 14m
1 stop
Depart: Mon May 29 2017 Return: Mon Jun 5 2017 Trip spans 8 days
United
United
PDX
1:45a
ISN
6:49a
5h 04m
1 stop
ISN
1:15p
PDX
6:29p
5h 14m
1 stop
* 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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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.

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Airports
Origin

Portland
$336
Destination

Williston
$336