$319+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — PDX
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Bismarck to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Bismarck to Portland
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Best
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One-way
Cheapest flights from Bismarck to PortlandExplore 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 8, 2026.
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 8, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 9/4. 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 12/113:45 pm -
1 stop6h 24m
Sat 1/26:15 am -
1 stop8h 35m
Deal found 9/4![Delta logo]()
$470
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 10/75:39 pm -
1 stop8h 05m
Mon 10/1211:51 am -
1 stop6h 04m
Deal found 9/8![Delta logo]()
$479
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 9/121:57 pm -
1 stop7h 23m
Sat 9/1912:01 pm -
1 stop8h 51m
Deal found 9/4![American Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 9/125:15 pm -
1 stop5h 50m
Sat 9/1912:45 pm -
1 stop5h 33m
Deal found 9/8![United Airlines logo]()
$523
This Delta deal was found by Cheapflights users on 9/7. 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 9/111:17 pm -
1 stop8h 59m
Thu 9/1712:25 am -
1 stop8h 07m
Deal found 9/7![Delta logo]()
$679
Best flights from Bismarck to PortlandDiscover carefully curated flight deals from Bismarck to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Bismarck to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/8. 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 1/265:40 am -
1 stop6h 00m
Sat 1/3012:40 pm -
1 stop5h 30m
Deal found 9/8![United Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 9/4. 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 12/113:45 pm -
1 stop6h 24m
Sat 1/26:15 am -
1 stop8h 35m
Deal found 9/4![Delta logo]()
$470
Last-minute flights from Bismarck to PortlandDiscover last-minute flight deals from Bismarck to Portland. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Portland. Data last updated September 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 9/101:57 pm -
1 stop7h 23m
Mon 9/1411:08 pm -
2 stops12h 19m
Deal found 9/4![American Airlines logo]()
$707
This Delta deal was found by Cheapflights users on 9/7. 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 9/111:17 pm -
1 stop8h 59m
Thu 9/1712:25 am -
1 stop8h 07m
Deal found 9/7![Delta logo]()
$679
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 9/121:57 pm -
1 stop7h 23m
Sat 9/1912:01 pm -
1 stop8h 51m
Deal found 9/4![American Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 9/125:15 pm -
1 stop5h 50m
Sat 9/1912:45 pm -
1 stop5h 33m
Deal found 9/8![United Airlines logo]()
$523
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 10/75:39 pm -
1 stop8h 05m
Mon 10/1211:51 am -
1 stop6h 04m
Deal found 9/8![Delta logo]()
$479
One-way flights from Bismarck to PortlandSearch for one-way flight options from Bismarck to Portland. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Bismarck to Portland. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/4. 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.
Wed 10/145:39 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 10/142:07 pm -
2 stops11h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 pm -
3 stops40h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$417
Find 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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (Delta) |
One-way from | $319 (Delta) |
Popular in | April |
Cheapest in | October |
Average price | $410 |
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 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Bismarck to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
5:39 pm-11:44 pm
1 stop8h 05m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$319
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
2:07 pm-11:59 pm
2 stops11h 52m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$389
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 9/23
1:17 pm-8:16 pm
1 stop8h 59m
Portland
Sat 9/26
12:25 am-10:32 am
1 stop8h 07m
$399
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Tue 1/26
5:40 am-9:40 am
1 stop6h 00m
Portland
Sat 1/30
12:40 pm-8:10 pm
1 stop5h 30m
$411
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
9:30 pm-11:40 am
3 stops40h 10m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$417
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Fri 12/11
3:45 pm-8:09 pm
1 stop6h 24m
Portland
Sat 1/2
6:15 am-4:50 pm
1 stop8h 35m
$470
Sorted by cheapest first
Compare providers for flights from Bismarck to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bismarck to Portland in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Bismarck-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bismarck-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-Portland flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bismarck-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bismarck-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BIS-PDX
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, October is the cheapest month in which you can book a flight from Bismarck to Portland (average of $313). Flying from Bismarck to Portland in April is currently the most expensive (average of $863). 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.
How much does it cost to fly round-trip from Bismarck to Portland?
Airfare is typical for this route at the moment.
Bismarck to Portland flights typically cost between $370 and $540 in September.The cheapest round-trip price found within the last 5 days was $399 on Delta (Sep 23-Sep 26).
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 8, 2026.
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.
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Vancouver
Kelso
Troutdale
Clackamas
Cannon Beach
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
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Bismarck and Portland flights
Browse other Bismarck and Portland flight options. Last updated on September 8, 2026.
Other flights from Bismarck
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Other flights to Portland
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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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$627 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$270 | Average$324 | FlexibilityNo cancel fee | On-timeN/A |