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$259+ Cheap flights from Bismarck to Portland (BIS - PDX)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — PDX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Bismarck to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to Portland (PDX). 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 11, 2025.

Round-trip from

$259
(Delta)

Popular in

March

Cheapest in

February

Average price

$326
From Bismarck to Portland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Bismarck to Portland

Cheapest flights from Bismarck to Portland
Explore the most affordable flight options available from Bismarck to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/187:30 amBIS - PDX
1 stop7h 20mDelta
Wed 10/2212:06 pmPDX - BIS
1 stop5h 31mDelta
Deal found 9/11$274
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/241:14 pmBIS - PDX
2 stops11h 26mDelta
Tue 10/285:40 amPDX - BIS
2 stops11h 57mDelta
Deal found 9/10$369
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/242:49 pmBIS - PDX
1 stop9h 00mAmerican Airlines
Tue 10/287:45 amPDX - BIS
2 stops12h 57mAmerican Airlines
Deal found 9/10$382
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 10/177:30 amBIS - PDX
1 stop7h 20mDelta
Wed 10/2212:06 pmPDX - BIS
1 stop5h 31mDelta
Deal found 9/11$383
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/75:15 pmBIS - PDX
1 stop7h 41mUnited Airlines
Mon 11/104:02 pmPDX - BIS
1 stop5h 37mUnited Airlines
Deal found 9/10$391
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/72:28 pmBIS - PDX
1 stop10h 58mAmerican Airlines
Mon 11/108:35 amPDX - BIS
2 stops11h 47mAmerican Airlines
Deal found 9/10$416
This American Airlines deal was found by Cheapflights users on 9/11. 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 9/122:32 pmBIS - PDX
1 stop8h 55mAmerican Airlines
Sun 9/148:31 amPDX - BIS
2 stops11h 47mAmerican Airlines
Deal found 9/11$447

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck to Portland 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 11, 2025.
Use the filters below to find and compare flights from Bismarck to Portland that are best for you.

Fly from

Bismarck

Fly to

Portland

Route

Depart

Return

Price

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Sat 2/21

1:10 pm-8:30 pm

1 stop9h 20m

Portland

Mon 2/23

12:55 am-10:56 am

1 stop8h 01m

$259

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Sat 10/18

7:30 am-12:50 pm

1 stop7h 20m

Portland

Wed 10/22

12:06 pm-7:37 pm

1 stop5h 31m

$274

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Fri 10/24

1:14 pm-10:40 pm

2 stops11h 26m

Portland

Tue 10/28

5:40 am-7:37 pm

2 stops11h 57m

$369

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Fri 11/21

2:28 pm-9:20 pm

1 stop8h 52m

$271

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Wed 10/8

7:30 am-12:50 pm

1 stop7h 20m

$271

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Fri 11/21

1:20 pm-10:41 pm

2 stops11h 21m

$315

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Wed 10/8

5:10 pm-12:28 am

2 stops9h 18m

$316

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Fri 11/21

5:45 am-10:51 pm

3 stops19h 06m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Bismarck to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Bismarck 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 Bismarck to Portland

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

Currently, November is the cheapest month in which you can book a flight from Bismarck to Portland (average of $277). Flying from Bismarck to Portland in March is currently the most expensive (average of $368). 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 BIS to PDX?

Find hourly flight availability from Bismarck to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 51% on flights from Bismarck to Portland by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Bismarck to Portland?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Bismarck to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

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 Bismarck to Portland. 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 Bismarck to Portland?

    Delta can get you from Bismarck to Portland in just under 9h 20m. Your travel time can differ by up to . Bismarck and Portland are separated by a distance of 1044 mi.

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

    Cheapflights users have booked flights from Bismarck to Portland round-trip from $208. Another airline that can offer you cheap pricing is United Airlines. These flights start at 49% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bismarck to Portland one-way?

    The cheapest airlines for a one-way flight from Bismarck to Portland are American Airlines ($271), Delta ($271), and United Airlines ($316).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck to Portland 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 Bismarck to Portland?

    Currently, November is the cheapest month in which you can book a flight from Bismarck to Portland (average of $277). Flying from Bismarck to Portland in March is currently the most expensive (average of $368). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Cannon Beach
Long Beach
Longview
Lincoln City
Tigard
Depoe Bay
Stevenson
Wilsonville
Pacific City
Troutdale
Tillamook
Gresham
Silverton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Bismarck to Portland

Discover the top 2 airlines that operate flights from Bismarck to Portland. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$383FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$455FlexibilityNo cancel feeOn-time69%

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