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Bismarck

$264+ Cheap flights from Portland to Bismarck (PDX - BIS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BIS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$259
(United Airlines)

Popular in

September

Cheapest in

May

Average price

$721
From Portland to Bismarck
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/18:35 amPDX - BIS
1 stop5h 54mUnited Airlines
Sun 10/56:00 amBIS - PDX
1 stop5h 29mUnited Airlines
Deal found 9/16$289
This Delta deal was found by Cheapflights users on 9/17. 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 12/412:32 amPDX - BIS
1 stop8h 25mDelta
Mon 12/81:27 pmBIS - PDX
2 stops12h 48mDelta
Deal found 9/17$329
This Delta deal was found by Cheapflights users on 9/16. 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 10/1612:40 amPDX - BIS
1 stop8h 00mDelta
Mon 10/201:14 pmBIS - PDX
2 stops11h 26mDelta
Deal found 9/16$334
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/54:02 pmPDX - BIS
1 stop5h 06mUnited Airlines
Mon 12/85:15 pmBIS - PDX
1 stop6h 00mUnited Airlines
Deal found 9/15$339
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 9/1710:55 amPDX - BIS
1 stop7h 51mUnited Airlines
Sat 9/201:55 pmBIS - PDX
1 stop5h 27mUnited Airlines
Deal found 9/16$343
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Tue 9/308:31 amPDX - BIS
2 stops11h 55mAmerican Airlines
Tue 10/76:20 amBIS - PDX
1 stop8h 41mAmerican Airlines
Deal found 9/17$374
This American Airlines deal was found by Cheapflights users on 9/16. 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 12/512:00 pmPDX - BIS
1 stop8h 18mAmerican Airlines
Mon 12/82:29 pmBIS - PDX
1 stop8h 55mAmerican Airlines
Deal found 9/16$377

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 September 17, 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

Wed 3/11

4:05 pm-11:37 pm

1 stop5h 32m

Bismarck

Wed 3/18

9:15 am-6:36 pm

2 stops11h 21m

$264

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 3/10

12:55 am-10:56 am

1 stop8h 01m

Bismarck

Wed 3/18

11:30 am-4:51 pm

1 stop7h 21m

$274

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Wed 10/1

8:35 am-4:29 pm

1 stop5h 54m

Bismarck

Sun 10/5

6:00 am-9:29 am

1 stop5h 29m

$289

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 10/16

12:40 am-10:40 am

1 stop8h 00m

Bismarck

Mon 10/20

1:14 pm-5:27 pm

1 stop6h 13m

$289

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 3/10

7:45 pm-10:56 am

2 stops13h 11m

Bismarck

Thu 3/19

11:30 am-4:51 pm

1 stop7h 21m

$314

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 3/9

12:55 am-10:56 am

1 stop8h 01m

Bismarck

Sat 3/21

11:30 am-4:51 pm

1 stop7h 21m

$316

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 3/9

7:45 pm-10:56 am

2 stops13h 11m

Bismarck

Sat 3/21

11:30 am-4:51 pm

1 stop7h 21m

$321

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 3/9

7:45 pm-10:56 am

2 stops13h 11m

Bismarck

Thu 3/19

11:30 am-4:51 pm

1 stop7h 21m

$329

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 12/4

12:32 am-10:57 am

1 stop8h 25m

Bismarck

Mon 12/8

1:27 pm-12:15 am

2 stops12h 48m

$329

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 3/12

4:05 pm-11:37 pm

1 stop5h 32m

Bismarck

Tue 3/17

5:07 pm-10:38 pm

1 stop7h 31m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 12 results
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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 June is currently the most expensive (average of $425). 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 September 17, 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 September 17, 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
7,961 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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 United Airlines and Delta fly from Portland to Bismarck in about 5h 32m. The time it takes to get you to your destination can typically vary by up to 2h 29m. Portland and Bismarck are separated by a distance of 1044 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $243. Another option worth looking into is United Airlines, starting at $282 round trip. Delta is currently priced 46% 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 June is currently the most expensive (average of $425). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$243Average$359FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$456FlexibilityNo cancel feeOn-time69%

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