Cheap flights from Portland to St. Louis

Round-trip
Economy
Portland (PDX)
St. Louis (STL)
Thu 7/15
Thu 7/22
Any month
Compare vs. momondo |

Flight information for Portland to St. Louis
(PDX to STL)

Find info about flight duration, direct flights, and airports for your flight from Portland to St. Louis
Best Price Found$193The best flight deal from Portland to St. Louis found on momondo in the last 72 hours is $193
Fastest flight time5h 51mThe fastest flight from Portland to St. Louis takes 5h 51m
Direct flightsNoneThere are no direct flights from Portland to St. Louis. Popular non-direct route for this connection is Portland - Lambert-St Louis.
Airports in St. Louis1 airportThere is 1 airport near St. Louis: Lambert-St Louis (STL)

How to get the cheapest flight ticket from Portland to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Portland to St. Louis?

August
The cheapest time of year to fly to St. Louis from Portland is August. Most expensive is December

What is the cheapest day to depart Portland for St. Louis?

Friday
The cheapest day of the week is typically Friday. The most expensive is typically Sunday

When is the cheapest time to fly from Portland to St. Louis?

in the evening
Portland to St. Louis flights are approximately 36% more expensive in the morning than in the evening

What is the cheapest airline that flies to St. Louis from Portland?

Frontier
Frontier, Sun Country Air, and United Airlines are the most popular carriers operating from Portland to St. Louis

What is the cheapest Portland to St. Louis flight route?

Portland - Lambert-St Louis
Fly from Portland to Lambert-St Louis for the best Portland - St. Louis flight prices
PDX
Portland
STL
Lambert-St Louis

How far in advance should you book Portland to St. Louis flights?

24 days before
The cheapest time to buy a flight from Portland to St. Louis is approximately 24 days to departure
60
Days before departure
0

Easily compare round-trip flights from Portland to St. Louis

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Portland to St. Louis by changing tabs
Multiple Airlines
Jun 23
PDX4:31 pmPortland
7h 48m
1 stop
STL12:19 amLambert-St Louis
Jul 3
STL9:34 amLambert-St Louis
6h 39m
1 stop
PDX4:13 pmPortland
Multiple Airlines
Aug 26
PDX3:53 pmPortland
8h 50m
1 stop
STL12:43 amLambert-St Louis
Aug 31
STL9:40 amLambert-St Louis
7h 30m
1 stop
PDX5:10 pmPortland
Multiple Airlines
Jul 20
PDX3:18 pmPortland
9h 00m
1 stop
STL12:18 amLambert-St Louis
Jul 27
STL9:40 amLambert-St Louis
7h 38m
1 stop
PDX5:18 pmPortland

Find the cheapest one-way flights from Portland to St. Louis

If you're looking for one-way flights from Portland to St. Louis, view some of our deals below provided by Frontier
Frontier
Aug 15
PDX8:35 pmPortland
7h 38m
1 stop
STL4:13 amLambert-St Louis
Frontier
Aug 22
PDX8:35 pmPortland
7h 38m
1 stop
STL4:13 amLambert-St Louis
Frontier
Jun 23
PDX4:31 pmPortland
7h 48m
1 stop
STL12:19 amLambert-St Louis

Best airlines flying from Portland to St. Louis

Compare and see reviews for airlines that fly from Portland to St. Louis with momondo
AirlineRatingFree CancellationPrice
Sun Country Air
PriceFrom $88
Free Cancellation
Rating
8.0
8.6

Boarding

7.6

Comfort

8.6

Crew

7.4

Entertainment

7.5

Food

Reviews

Pros: Quick boarding. Inexpensive ticket. Direct flight.

Cons: Crew walked thru cabin at least 5 times collecting garbage, but could not hand out sealed snack or sealed water. People sat should-to-shoulder - No buffer space, but asked to leave the plane with 6 foot intervals???? This airline picks and chooses their Covid precautions. Quick and inexpensive flight, if you don’t mind the rest.

1 / 3
Frontier
PriceFrom $94
Free Cancellation
Rating
7.4
8.0

Boarding

7.0

Comfort

8.0

Crew

6.7

Entertainment

7.0

Food

Reviews

Pros: The time was great

Cons: The seats are very uncomfortable especially when you’ve had back surgery.

1 / 10
United Airlines
PriceFrom $122
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10
American Airlines
PriceFrom $124
Free Cancellation
Rating
7.2
7.5

Boarding

7.1

Comfort

7.9

Crew

7.1

Entertainment

6.8

Food

Reviews

Pros: Nothing

Cons: Not charging me 100 dollars For a luggage that was 56 pounds

1 / 10
Delta
PriceFrom $138
Free Cancellation
Rating
8.1
8.3

Boarding

8.4

Comfort

8.3

Crew

7.9

Entertainment

8.1

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
Alaska Airlines
PriceFrom $149
Free Cancellation
Rating
8.2
8.7

Boarding

8.3

Comfort

8.7

Crew

8.0

Entertainment

7.4

Food

Reviews

Pros: The flight wasn't full which is always nice and they served full size cans which is also a nice little note.

Cons: The plane was pretty old and people just started sitting wherever. It was chaos as my wife and I sat in our assigned seating and just watched people wander like animals.

1 / 10
Southwest
PriceFrom $265
Free Cancellation
Rating
8.4
8.6

Boarding

8.5

Comfort

8.8

Crew

7.6

Entertainment

7.8

Food

Reviews

Pros: The plane was new and the seats were nice.

1 / 10

Which airlines flying from Portland to Lambert-St Louis have COVID-19 safety policies in place?

Alaska Airlines has implemented additional safety measures to accommodate travelers. When flying from Portland to Lambert-St Louis, expect masks to be provided - they are required onboard. Aircrafts are also being cleaned thoroughly with enhanced products regularly. Additional policies include the installation of HEPA filters and pre-flight testing. Some airlines are even offering socially-distanced seating for a limited time. Keep in mind that policies will vary by airline.

Are airlines flying from Portland to Lambert-St Louis offering flexible cancellation due to COVID-19?

Due to the global impact of COVID-19, some of our airline partners operating flights from Portland to Lambert-St Louis, such as Delta, Sun Country Air, and United Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.


Flights from Portland to:

  • Round-trip
  • One-way
  • Multi-city
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First