HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bismarck

$166+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BIS
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Bismarck 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 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 4, 2026.

This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 11/246:00 am
PDX
-
BIS
1 stop6h 32m
Delta
Wed 12/25:42 pm
BIS
-
PDX
1 stop8h 05m
Delta
Deal found 8/1$321
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 11/246:00 am
PDX
-
BIS
1 stop6h 32m
Delta
Sun 11/295:00 am
BIS
-
PDX
1 stop7h 36m
Delta
Deal found 8/1$325
This Delta deal was found by Cheapflights users on 8/1. 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.
Mon 11/2311:52 am
PDX
-
BIS
1 stop5h 39m
Delta
Thu 11/265:15 pm
BIS
-
PDX
1 stop8h 44m
Delta
Deal found 8/1$329
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/295:30 am
PDX
-
BIS
2 stops13h 03m
United Airlines
Sat 9/56:00 am
BIS
-
PDX
1 stop5h 32m
United Airlines
Deal found 7/31$330
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/295:30 am
PDX
-
BIS
2 stops13h 03m
United Airlines
Tue 9/19:00 am
BIS
-
PDX
2 stops13h 31m
United Airlines
Deal found 8/1$335
This Delta deal was found by Cheapflights users on 8/1. 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.
Sun 11/226:00 am
PDX
-
BIS
1 stop6h 32m
Delta
Wed 12/25:42 pm
BIS
-
PDX
1 stop8h 05m
Delta
Deal found 8/1$350
This Delta deal was found by Cheapflights users on 8/1. 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.
Sun 11/226:00 am
PDX
-
BIS
1 stop6h 32m
Delta
Sun 11/295:00 am
BIS
-
PDX
1 stop7h 36m
Delta
Deal found 8/1$354
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/2112:45 pm
PDX
-
BIS
1 stop5h 48m
United Airlines
Sun 8/236:00 am
BIS
-
PDX
2 stops8h 00m
United Airlines
Deal found 8/1$359
This Delta deal was found by Cheapflights users on 8/1. 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 8/1912:35 am
PDX
-
BIS
1 stop7h 55m
Delta
Sun 8/238:01 am
BIS
-
PDX
1 stop7h 37m
Delta
Deal found 8/1$379
This Delta deal was found by Cheapflights users on 8/1. 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.
Tue 11/246:00 am
PDX
-
BIS
1 stop6h 32m
Delta
Tue 12/15:42 pm
BIS
-
PDX
1 stop8h 05m
Delta
Deal found 8/1$395
This Delta deal was found by Cheapflights users on 8/1. 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.
Mon 11/2311:52 am
PDX
-
BIS
1 stop5h 39m
Delta
Tue 12/15:42 pm
BIS
-
PDX
1 stop8h 05m
Delta
Deal found 8/1$399

Find 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 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$321
(Delta)

One-way from

$166
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$547
Provider with most accurate pricing for Portland-Bismarck flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Bismarck flights.
Search Deals
From Portland to Bismarck
Search Deals
One-way flight from Portland to Bismarck
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 4, 2026.
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

Cheapest round-trip

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 8/29

10:50 am-8:33 pm

1 stop7h 43m

Bismarck

Sat 9/5

9:00 am-3:05 pm

1 stop8h 05m

$325

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 8/29

5:00 am-12:56 pm

1 stop5h 56m

Bismarck

Tue 9/1

6:00 am-9:32 am

1 stop5h 32m

$325

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Thu 11/26

6:00 am-4:29 pm

1 stop8h 29m

Bismarck

Sun 11/29

5:00 am-10:36 am

1 stop7h 36m

$329
Quickest round-trip

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sat 11/14

1:15 pm-8:29 pm

1 stop5h 14m

Bismarck

Tue 11/17

5:02 pm-9:13 pm

1 stop6h 11m

$411

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sun 11/22

6:00 am-2:32 pm

1 stop6h 32m

Bismarck

Fri 11/27

8:05 am-10:28 pm

2 stops16h 23m

$507
Cheapest one-way

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Sun 9/6

11:15 am-11:38 pm

2 stops10h 23m

$166

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Mon 9/21

12:25 am-10:32 am

1 stop8h 07m

$309

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 9/22

9:00 am-8:18 pm

2 stops9h 18m

$314

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Tue 9/22

9:46 pm-12:40 pm

3 stops36h 54m

$349
Quickest one-way

PortlandBismarck

PDX - BIS

PDXBIS

Portland

Fri 8/21

11:50 am-7:46 pm

1 stop5h 56m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland to Bismarck

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 Portland to Bismarck in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Bismarck flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Bismarck flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Bismarck flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Bismarck 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 Portland-Bismarck 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 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

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

Airfare is below average for this route at the moment.

Portland to Bismarck flights typically cost between $460 and $577 in November.
The cheapest round-trip price found within the last 5 days was $321 on Delta (Nov 24-Dec 2).

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 4, 2026.
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
7.8
Good
8,483 reviews

Overall

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Overall

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,058 reviews
Delta
7.8
Good
8,483 reviews

Overall

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 fly from Portland to Bismarck in about 7h 43m. 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 $279. Another option worth looking into is United Airlines, starting at $328 round trip. Delta is currently priced 49% 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.

See more FAQs

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 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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$279Average$569FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$328Average$547FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.