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Bismarck

$125+ Cheap flights from Portland to Bismarck (PDX - BIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BIS
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Portland to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Bismarck (BIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$309
(Delta)

One-way from

$125
(Kiwi.com)

Popular in

August

Cheapest in

May

Average price

$544
From Portland to Bismarck
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One-way flight from Portland to Bismarck
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Portland to Bismarck

Cheapest flights from Portland to Bismarck
Explore the most affordable flight options available from Portland to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:55 amPDX - BIS
1 stop7h 56mDelta
Mon 12/81:15 pmBIS - PDX
1 stop9h 10mDelta
Deal found 8/19$309
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:07 pmPDX - BIS
1 stop5h 32mUnited Airlines
Sun 9/146:00 amBIS - PDX
1 stop5h 28mUnited Airlines
Deal found 8/20$339
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:55 amPDX - BIS
1 stop7h 56mDelta
Sun 12/71:15 pmBIS - PDX
1 stop9h 10mDelta
Deal found 8/19$359
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:07 pmPDX - BIS
1 stop5h 32mUnited Airlines
Sat 9/136:00 amBIS - PDX
1 stop5h 28mUnited Airlines
Deal found 8/18$381
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:08 pmPDX - BIS
1 stop7h 26mAmerican Airlines
Mon 12/83:13 pmBIS - PDX
2 stops9h 58mAmerican Airlines
Deal found 8/19$382

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Portland to Bismarck that are best for you.

Fly from

Portland

Fly to

Bismarck

Route

Depart

Return

Price

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 12/4

12:55 am-10:51 am

1 stop7h 56m

Bismarck

Mon 12/8

1:15 pm-8:25 pm

1 stop9h 10m

$309

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 9/12

4:07 pm-11:39 pm

1 stop5h 32m

Bismarck

Sun 9/14

6:00 am-9:28 am

1 stop5h 28m

$339

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 12/5

5:00 am-12:50 pm

1 stop5h 50m

Bismarck

Mon 12/8

5:15 pm-9:15 pm

1 stop6h 00m

$339

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 12/4

12:55 am-10:51 am

1 stop7h 56m

Bismarck

Sun 12/7

1:15 pm-8:25 pm

1 stop9h 10m

$359

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 10/8

8:36 pm-10:43 am

1 stop12h 07m

$136

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 10/8

1:55 pm-11:16 pm

1 stop7h 21m

$271

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 10/7

11:48 am-10:42 pm

1 stop8h 54m

$271

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 11/5

1:00 pm-11:39 pm

2 stops8h 39m

$276

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 11/6

11:44 am-10:39 am

3 stops44h 55m

$318

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 11/5

11:44 am-10:38 am

3 stops44h 54m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 12 results
1
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Best time to book a flight from Portland to Bismarck

Have a flexible travel schedule? Discover the best time to fly to Bismarck from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Bismarck

What is the cheapest month to book a flight from Portland to Bismarck?

Currently, August is the cheapest month in which you can book a flight from Portland to Bismarck (average of $346). Flying from Portland to Bismarck in July is currently the most expensive (average of $426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to BIS?

Find hourly flight availability from Portland to Bismarck. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

It’s optimal to fly from Portland to Bismarck in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Bismarck

Get insights into the airlines that provide service to Bismarck. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bismarck. Reviews last updated August 20, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Portland to Bismarck. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland to Bismarck. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Bismarck?

    Airlines like Delta fly from Portland to Bismarck in about 7h 56m. The time it takes to get you to your destination can typically vary by up to . Portland and Bismarck are separated by a distance of 1044 mi.

  • What are the cheapest airlines flying from Portland to Bismarck round-trip?

    Flying on Delta is currently your cheapest option to Bismarck, with prices starting at $235. Another option worth looking into is United Airlines, starting at $279 round trip. Delta is currently priced 45% below the average price you’ll pay for this route.

  • Can I find deals for flights from Portland to Bismarck that include hotel bookings?

    Yes. In addition to deals on Portland to Bismarck flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Bismarck?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Bismarck.

  • Can I find deals for business class flights from Portland to Bismarck?

    Yes. Cheapflights offers flight deals from Portland to Bismarck by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Bismarck?

    Currently, August is the cheapest month in which you can book a flight from Portland to Bismarck (average of $346). Flying from Portland to Bismarck in July is currently the most expensive (average of $426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Portland to Bismarck

Discover the top 2 airlines that operate flights from Portland to Bismarck. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$235Average$319FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$459FlexibilityNo cancel feeOn-time69%

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