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Cheap flights from Portland to Bismarck from $314

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bismarck departing on 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Bismarck

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:30 am - 10:34 am
PDX
-
BIS
8h 04m
1 stop
Delta Logo
1:19 pm - 8:07 pm
BIS
-
PDX
8h 48m
1 stop
$325Delta
Mon, Apr 20 - Tue, Apr 28
Delta Logo
12:30 am - 10:34 am
PDX
-
BIS
8h 04m
1 stop
Delta Logo
11:17 am - 6:08 pm
BIS
-
PDX
8h 51m
2 stops
$330Delta
Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
4:15 pm - 11:41 pm
PDX
-
BIS
5h 26m
1 stop
United Airlines Logo
5:06 pm - 9:09 pm
BIS
-
PDX
6h 03m
1 stop
$339United Airlines
Thu, May 7 - Sun, May 10
Delta Logo
6:15 am - 5:00 pm
PDX
-
BIS
8h 45m
1 stop
Delta Logo
11:30 am - 3:58 pm
BIS
-
PDX
6h 28m
1 stop
$340Delta
Tue, Aug 4 - Tue, Aug 18
United Airlines Logo
5:00 am - 1:05 pm
PDX
-
BIS
6h 05m
1 stop
United Airlines Logo
6:00 am - 2:06 pm
BIS
-
PDX
10h 06m
2 stops
$344United Airlines
Thu, May 7 - Sun, May 10
Delta Logo
6:15 am - 5:00 pm
PDX
-
BIS
8h 45m
1 stop
Delta Logo
11:30 am - 6:11 pm
BIS
-
PDX
8h 41m
2 stops
$345Delta
Tue, Aug 4 - Tue, Aug 18
Allegiant Air Logo
6:38 pm - 9:14 pm
PDX
-
BIS
24h 36m
1 stop
Allegiant Air Logo
9:13 pm - 6:08 pm
BIS
-
PDX
22h 55m
1 stop
$347Allegiant Air
Thu, Jul 30 - Wed, Aug 12
Allegiant Air Logo
6:38 pm - 9:14 pm
PDX
-
BIS
24h 36m
1 stop
Allegiant Air Logo
9:13 pm - 6:08 pm
BIS
-
PDX
22h 55m
1 stop
$354Allegiant Air
Thu, Jul 30 - Wed, Aug 12
Delta Logo
6:15 am - 5:00 pm
PDX
-
BIS
8h 45m
1 stop
Delta Logo
5:30 pm - 11:41 pm
BIS
-
PDX
8h 11m
2 stops
$359Delta
Thu, Jul 30 - Mon, Aug 17
Allegiant Air Logo
6:38 pm - 9:14 pm
PDX
-
BIS
24h 36m
1 stop
Allegiant Air Logo
9:13 pm - 6:08 pm
BIS
-
PDX
22h 55m
1 stop
$360Allegiant Air
Thu, Jul 30 - Wed, Aug 12

Delta flights from Portland to Bismarck

Our best Delta deals on Portland to Bismarck flight tickets
Delta
Apr 20
PDX12:30 amPortland
8h 04m
1 stop
BIS10:34 amBismarck
Apr 28
BIS1:19 pmBismarck
8h 48m
1 stop
PDX8:07 pmPortland
$325
Delta
Apr 20
PDX12:30 amPortland
8h 04m
1 stop
BIS10:34 amBismarck
Apr 28
BIS11:17 amBismarck
8h 51m
2 stops
PDX6:08 pmPortland
$330
Delta
Aug 4
PDX6:15 amPortland
8h 45m
1 stop
BIS5:00 pmBismarck
Aug 18
BIS11:30 amBismarck
6h 28m
1 stop
PDX3:58 pmPortland
$340

Allegiant Air flights from Portland to Bismarck

Our best Allegiant Air deals on Portland to Bismarck flight tickets
Allegiant Air
Jul 30
PDX6:38 pmPortland
24h 36m
1 stop
BIS9:14 pmBismarck
Aug 12
BIS9:13 pmBismarck
22h 55m
1 stop
PDX6:08 pmPortland
$347
Allegiant Air
Jul 30
PDX6:38 pmPortland
24h 36m
1 stop
BIS9:14 pmBismarck
Aug 12
BIS9:13 pmBismarck
22h 55m
1 stop
PDX6:08 pmPortland
$354
Allegiant Air
Jul 30
PDX6:38 pmPortland
24h 36m
1 stop
BIS9:14 pmBismarck
Aug 12
BIS9:13 pmBismarck
22h 55m
1 stop
PDX6:08 pmPortland
$360

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Bismarck that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Portland to Bismarck that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 4/20

12:30 am-10:34 am

1 stop8h 04m

Bismarck

Tue 4/28

1:19 pm-8:07 pm

1 stop8h 48m

$325

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 4/20

12:30 am-10:34 am

1 stop8h 04m

Bismarck

Tue 4/28

11:17 am-6:08 pm

2 stops8h 51m

$330
Quickest round-trip

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 5/7

4:15 pm-11:41 pm

1 stop5h 26m

Bismarck

Sun 5/10

5:06 pm-9:09 pm

1 stop6h 03m

$339

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 8/4

6:15 am-5:00 pm

1 stop8h 45m

Bismarck

Tue 8/18

11:30 am-3:58 pm

1 stop6h 28m

$340

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 5/7

5:00 am-1:05 pm

1 stop6h 05m

Bismarck

Sun 5/10

6:00 am-2:06 pm

2 stops10h 06m

$344

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 8/4

6:15 am-5:00 pm

1 stop8h 45m

Bismarck

Tue 8/18

11:30 am-6:11 pm

2 stops8h 41m

$345

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 7/30

6:38 pm-9:14 pm

1 stop24h 36m

Bismarck

Wed 8/12

9:13 pm-6:08 pm

1 stop22h 55m

$347

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 7/30

6:38 pm-9:14 pm

1 stop24h 36m

Bismarck

Wed 8/12

9:13 pm-6:08 pm

1 stop22h 55m

$354

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 7/30

6:15 am-5:00 pm

1 stop8h 45m

Bismarck

Mon 8/17

5:30 pm-11:41 pm

2 stops8h 11m

$359

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 7/30

6:38 pm-9:14 pm

1 stop24h 36m

Bismarck

Wed 8/12

9:13 pm-6:08 pm

1 stop22h 55m

$360

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Bismarck from

How to get the cheapest flight ticket from Portland to Bismarck

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Bismarck?

What is the cheapest month to fly to Bismarck?

In general, February is the cheapest month to fly from Portland to Bismarck. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $279. If you aren’t able to travel during the month of February, then book flights to Bismarck from Portland during September instead. Flights to Bismarck in September, while not as cheap as those in February, still average around $287.

Can stopping save me money on Portland to Bismarck flights?

You could potentially save up to 40% on your flight if you consider stops on a Portland to Bismarck flight.

When to book flights from Portland to Bismarck

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Bismarck according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Bismarck (PDX to BIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Bismarck

Fastest flight time

5h 26m

Direct flights

None
The fastest flight from Portland to Bismarck takes 5h 26m
There are no direct flights from Portland to Bismarck. There are no popular flight routes from Portland to Bismarck.
Search flight deals

  • How far is Portland to Bismarck by plane?

    The straight-line distance from Portland to Bismarck is 1047.2 mi. 5h 26m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Bismarck Airport?

    Prices for flights from Portland Airport to Bismarck Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Bismarck Airport?

  • How old do you have to be to fly from Portland Airport to Bismarck Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Bismarck Airport.

  • What documentation or ID do you need to fly to Bismarck Airport?

    The travel and health documents you'll need for your trip to Bismarck Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bismarck Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Bismarck?

Best airlines flying from Portland to Bismarck

Compare and see reviews for airlines that fly from Portland to Bismarck with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $259Free CancellationRating
7.9
8,359 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,509 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Bismarck?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Bismarck. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Bismarck with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Bismarck flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Bismarck?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bismarck from Portland.

I’m not ready to book a flight from Portland to Bismarck right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bismarck from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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