Cheap flights from Casper to Portland

One-way fares from $422 · CPR → PDX · prices found by travellers in the last 48 hours

Compare all dates Portland → Casper
Cheapest fare
$422

United Airlines · Fri, Nov 13

Cheapest month
November

from $422

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 16m

1,320 km

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Cheapest month to fly from Casper to Portland

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

  1. November 2026 Cheapest $422

Cheapest dates in November 2026

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

United Airlines
Depart05:15 Fri, Nov 13CPR → PDX 4h 27m · 1 stop
$422one 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 Casper to Portland

Casper (CPR) and Portland (PDX) are about 1,320 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 4h 16m. Over the next few months, one-way fares start from $422, 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 Casper to Portland?

The cheapest one-way fare we've seen recently is $422 with United Airlines, departing Friday, November 13, 2026.

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

November 2026 currently has the lowest fares, from $422 one way.

Are there direct flights from Casper to Portland?

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

How long is the flight from Casper to Portland?

The quickest journey we've seen takes about 4h 16m. Casper and Portland are around 1,320 km apart.

Which airlines fly from Casper to Portland?

Recent fares on this route were with United Airlines.

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