Cheap flights from Bismarck to Portland

One-way fares from $310 · BIS → PDX · prices found by travellers in the last 48 hours

Compare all dates Portland → Bismarck
Cheapest fare
$310

Allegiant Air · Sun, Nov 15

Cheapest month
November

from $310

Direct flights
Not recently

Usually 1+ stop

Quickest trip
7h 39m

1,690 km

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Cheapest month to fly from Bismarck to Portland

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $310

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Allegiant Air
Depart22:06 Sun, Nov 15BIS → PDX 7h 39m · 2 stops
$310one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Portland

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in PortlandTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in PortlandPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in PortlandCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Bismarck to Portland

Bismarck (BIS) and Portland (PDX) are about 1,690 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 7h 39m. Over the next few months, one-way fares start from $310, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Bismarck to Portland?

The cheapest one-way fare we've seen recently is $310 with Allegiant Air, departing Sunday, November 15, 2026.

What is the cheapest month to fly from Bismarck to Portland?

November 2026 currently has the lowest fares, from $310 one way.

Are there direct flights from Bismarck to Portland?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Bismarck to Portland?

The quickest journey we've seen takes about 7h 39m. Bismarck and Portland are around 1,690 km apart.

Which airlines fly from Bismarck to Portland?

Recent fares on this route were with Allegiant Air.

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