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Cheap flights from Portland to Bismarck from $259

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bismarck departing on 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland to Bismarck

Cheap round-trip flights

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United Airlines Logo
4:02 pm - 11:08 pmPDX-BIS
5h 06m1 stop
United Airlines Logo
8:00 am - 1:37 pmBIS-PDX
7h 37m1 stop
$259United Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Delta Logo
6:00 am - 4:49 pmPDX-BIS
8h 49m1 stop
Delta Logo
11:30 am - 4:51 pmBIS-PDX
7h 21m1 stop
$265Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
6:00 am - 4:49 pmPDX-BIS
8h 49m1 stop
Delta Logo
11:30 am - 4:51 pmBIS-PDX
7h 21m1 stop
$305Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
12:32 am - 11:07 amPDX-BIS
8h 35m1 stop
Delta Logo
1:27 pm - 8:52 pmBIS-PDX
9h 25m1 stop
$339Delta
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
1:45 pm - 11:38 pmPDX-BIS
7h 53m2 stops
Delta Logo
1:27 pm - 8:52 pmBIS-PDX
9h 25m1 stop
$344Delta
Find Deal
Fri, Dec 5 - Sun, Dec 7
Delta Logo
6:00 am - 4:49 pmPDX-BIS
8h 49m1 stop
Delta Logo
7:31 am - 8:47 pmBIS-PDX
15h 16m2 stops
$370Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
6:00 am - 4:49 pmPDX-BIS
8h 49m1 stop
Delta Logo
11:30 am - 8:47 pmBIS-PDX
11h 17m2 stops
$390Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
12:40 am - 11:23 pmPDX-BIS
20h 43m1 stop
Delta Logo
11:30 am - 4:51 pmBIS-PDX
7h 21m1 stop
$399Delta
Find Deal
Fri, Mar 6 - Wed, Mar 11
Delta Logo
12:32 am - 11:07 amPDX-BIS
8h 35m1 stop
Delta Logo
1:27 pm - 8:52 pmBIS-PDX
9h 25m1 stop
$419Delta
Find Deal
Wed, Dec 10 - Thu, Dec 18
American Airlines Logo
12:00 pm - 10:18 pmPDX-BIS
8h 18m1 stop
American Airlines Logo
6:00 am - 12:50 pmBIS-PDX
8h 50m1 stop
$422American Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18

United Airlines flights from Portland to Bismarck

Our best United Airlines deals on Portland to Bismarck flight tickets
United Airlines
Dec 5
PDX4:02 pmPortland
5h 06m
1 stop
BIS11:08 pmBismarck
Dec 7
BIS8:00 amBismarck
7h 37m
1 stop
PDX1:37 pmPortland
$259
Find similar
United Airlines
Mar 7
PDX1:35 pmPortland
8h 02m
2 stops
BIS11:37 pmBismarck
Mar 11
BIS1:30 pmBismarck
13h 04m
2 stops
PDX12:34 amPortland
$477
Find similar
United Airlines
Mar 7
PDX1:25 pmPortland
8h 12m
1 stop
BIS11:37 pmBismarck
Mar 11
BIS8:00 amBismarck
30h 37m
3 stops
PDX12:37 pmPortland
$492
Find similar

Delta flights from Portland to Bismarck

Our best Delta deals on Portland to Bismarck flight tickets
Delta
Mar 7
PDX6:00 amPortland
8h 49m
1 stop
BIS4:49 pmBismarck
Mar 11
BIS11:30 amBismarck
7h 21m
1 stop
PDX4:51 pmPortland
$265
Find similar
Delta
Mar 7
PDX6:00 amPortland
8h 49m
1 stop
BIS4:49 pmBismarck
Mar 11
BIS11:30 amBismarck
7h 21m
1 stop
PDX4:51 pmPortland
$305
Find similar
Delta
Dec 4
PDX12:32 amPortland
8h 35m
1 stop
BIS11:07 amBismarck
Dec 7
BIS1:27 pmBismarck
9h 25m
1 stop
PDX8:52 pmPortland
$339
Find similar

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 November 14, 2025.
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

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 12/5

4:02 pm-11:08 pm

1 stop5h 06m

Bismarck

Sun 12/7

8:00 am-1:37 pm

1 stop7h 37m

$259

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 3/7

6:00 am-4:49 pm

1 stop8h 49m

Bismarck

Wed 3/11

11:30 am-4:51 pm

1 stop7h 21m

$265

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 3/7

6:00 am-4:49 pm

1 stop8h 49m

Bismarck

Wed 3/11

11:30 am-4:51 pm

1 stop7h 21m

$305

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 12/4

12:32 am-11:07 am

1 stop8h 35m

Bismarck

Sun 12/7

1:27 pm-8:52 pm

1 stop9h 25m

$339

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 12/5

1:45 pm-11:38 pm

2 stops7h 53m

Bismarck

Sun 12/7

1:27 pm-8:52 pm

1 stop9h 25m

$344

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 3/7

6:00 am-4:49 pm

1 stop8h 49m

Bismarck

Wed 3/11

7:31 am-8:47 pm

2 stops15h 16m

$370

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 3/7

6:00 am-4:49 pm

1 stop8h 49m

Bismarck

Wed 3/11

11:30 am-8:47 pm

2 stops11h 17m

$390

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 3/6

12:40 am-11:23 pm

1 stop20h 43m

Bismarck

Wed 3/11

11:30 am-4:51 pm

1 stop7h 21m

$399

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 12/10

12:32 am-11:07 am

1 stop8h 35m

Bismarck

Thu 12/18

1:27 pm-8:52 pm

1 stop9h 25m

$419

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 12/11

12:00 pm-10:18 pm

1 stop8h 18m

Bismarck

Thu 12/18

6:00 am-12:50 pm

1 stop8h 50m

$422

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 cheapest month to fly to Bismarck?

In general, September 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 $287. If you aren’t able to travel during the month of September, then book flights to Bismarck from Portland during May instead. Flights to Bismarck in May, while not as cheap as those in September, still average around $342.

What is the cheapest day to depart on your flight to Bismarck?

The cheapest day to depart from Portland to Bismarck is on a Friday. Travelers who choose to depart for Bismarck on a Friday will often find tickets for as low as $398. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $674. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bismarck.

What is the cheapest time of day to depart on your flight to Bismarck?

According to our data, the cheapest time of day to fly to Bismarck is in the evening. momondo users have found flights departing from Portland to Bismarck in the evening for as low as $296. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $569. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Portland to Bismarck flights?

You could potentially save up to 35% 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

Direct flights

None
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 06m 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 $243Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
9,017 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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