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Cheap flights from Portland to St. Louis from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to St. Louis departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Portland to St. Louis by changing tabs
Spirit Airlines
Aug 22
PDX5:23 amPortland
10h 05m
1 stop
STL5:28 pmLambert-St Louis
Aug 27
STL8:00 amLambert-St Louis
14h 21m
1 stop
PDX8:21 pmPortland
Multiple Airlines
Jun 11
PDX9:03 pmPortland
11h 39m
1 stop
STL10:42 amLambert-St Louis
Jun 12
STL1:55 pmLambert-St Louis
12h 13m
1 stop
PDX12:08 amPortland
Frontier
Aug 17
PDX8:41 amPortland
12h 10m
1 stop
STL10:51 pmLambert-St Louis
Aug 23
STL9:26 pmLambert-St Louis
12h 25m
1 stop
PDX7:51 amPortland
American Airlines
Sep 27
PDX11:59 pmPortland
8h 43m
1 stop
STL10:42 amLambert-St Louis
Oct 1
STL5:30 amLambert-St Louis
7h 34m
1 stop
PDX11:04 amPortland
Delta
Oct 15
PDX7:00 amPortland
5h 30m
1 stop
STL2:30 pmLambert-St Louis
Oct 30
STL6:30 amLambert-St Louis
8h 10m
1 stop
PDX12:40 pmPortland
United Airlines
Aug 19
PDX8:00 amPortland
12h 13m
2 stops
STL10:13 pmLambert-St Louis
Aug 23
STL5:20 pmLambert-St Louis
8h 13m
1 stop
PDX11:33 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 American Airlines, Frontier and Spirit Airlines
Spirit Airlines
Aug 20
PDX5:23 amPortland
8h 18m
1 stop
STL3:41 pmLambert-St Louis
Frontier
Jun 4
PDX12:49 amPortland
6h 40m
1 stop
STL9:29 amLambert-St Louis
American Airlines
Jun 7
PDX9:00 pmPortland
9h 32m
1 stop
STL8:32 amLambert-St Louis

Search last-minute flights to St. Louis from Portland

Find and compare round-trip flight prices for your last-minute flight from Portland to St. Louis
Frontier
Jun 4
PDX12:49 amPortland
6h 40m
1 stop
STL9:29 amLambert-St Louis
Jun 10
STL10:59 pmLambert-St Louis
11h 33m
1 stop
PDX8:32 amPortland
Multiple Airlines
Jun 5
PDX11:53 pmPortland
10h 12m
2 stops
STL12:05 pmLambert-St Louis
Jun 12
STL1:55 pmLambert-St Louis
12h 13m
1 stop
PDX12:08 amPortland
American Airlines
Jun 9
PDX9:00 pmPortland
9h 33m
1 stop
STL8:33 amLambert-St Louis
Jun 16
STL5:27 amLambert-St Louis
6h 52m
1 stop
PDX10:19 amPortland
Spirit Airlines
Jun 9
PDX9:07 pmPortland
14h 44m
1 stop
STL1:51 pmLambert-St Louis
Jun 11
STL11:57 amLambert-St Louis
24h 56m
3 stops
PDX10:53 amPortland
Frontier
Jun 4
PDX12:49 amPortland
6h 40m
1 stop
STL9:29 amLambert-St Louis
Jun 8
STL8:02 pmLambert-St Louis
14h 43m
1 stop
PDX8:45 amPortland
Alaska Airlines
Jun 8
PDX5:00 amPortland
6h 36m
1 stop
STL1:36 pmLambert-St Louis
Jun 8
STL7:41 pmLambert-St Louis
6h 00m
1 stop
PDX11:41 pmPortland

American Airlines flights from Portland to St. Louis

Our best American Airlines deals on Portland to St. Louis flight tickets
American Airlines
Sep 27
PDX11:59 pmPortland
8h 43m
1 stop
STL10:42 amLambert-St Louis
Oct 1
STL5:30 amLambert-St Louis
7h 34m
1 stop
PDX11:04 amPortland
American Airlines
Jun 9
PDX9:00 pmPortland
9h 33m
1 stop
STL8:33 amLambert-St Louis
Jun 16
STL5:27 amLambert-St Louis
6h 52m
1 stop
PDX10:19 amPortland
American Airlines
Jun 12
PDX11:59 pmPortland
6h 55m
1 stop
STL8:54 amLambert-St Louis
Jun 17
STL6:08 pmLambert-St Louis
6h 50m
1 stop
PDX10:58 pmPortland

Spirit Airlines flights from Portland to St. Louis

Our best Spirit Airlines deals on Portland to St. Louis flight tickets
Spirit Airlines
Aug 22
PDX5:23 amPortland
10h 05m
1 stop
STL5:28 pmLambert-St Louis
Aug 27
STL8:00 amLambert-St Louis
14h 21m
1 stop
PDX8:21 pmPortland
Spirit Airlines
Sep 11
PDX12:02 pmPortland
27h 26m
1 stop
STL5:28 pmLambert-St Louis
Sep 25
STL11:36 amLambert-St Louis
13h 39m
1 stop
PDX11:15 pmPortland
Spirit Airlines
Aug 22
PDX5:23 amPortland
10h 05m
1 stop
STL5:28 pmLambert-St Louis
Aug 26
STL3:02 pmLambert-St Louis
22h 08m
1 stop
PDX11:10 amPortland

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?

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

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

Saturday. The cheapest day of the week is typically Saturday. 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 29% more expensive in the morning than in the evening

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

Spirit Airlines. Alaska Airlines, American Airlines, and Delta 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

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

19 days before. The cheapest time to buy a flight from Portland to St. Louis is approximately 19 days to departure

Cheap Portland to St. Louis (PDX to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to St. Louis

Best Price Found

$74

Fastest flight time

5h 09m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Portland in the past 72 hours is $74. The best round-trip flight deal from Portland to St. Louis found on momondo in the last 72 hours is $117.
The fastest flight from Portland to St. Louis takes 5h 09m
There are no direct flights from Portland to St. Louis. Popular non-direct route for this connection is Portland Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Portland to Lambert-St Louis by plane?

    A flight from Portland to Lambert-St Louis will travel around 1718.1 mi. A reasonable flight in good conditions will take 5h 09m.

  • When did momondo last update prices for flights from Portland Airport to Lambert-St Louis Airport?

    Prices for flights from Portland Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Portland Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Best airlines flying from Portland to St. Louis

Compare and see reviews for airlines that fly from Portland to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $110Free CancellationRating
6.2
4,016 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $149Free CancellationRating
6.4
8,616 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $279Free CancellationRating
7.3
14,284 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $284Free CancellationRating
8.0
9,201 reviews
Search Alaska Airlines flights
DeltaPriceFrom $297Free CancellationRating
8.0
10,457 reviews
Search Delta flights
United AirlinesPriceFrom $345Free CancellationRating
7.4
10,777 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to St. Louis?

It is quick and easy to find Portland to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Portland to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to St. Louis?

Once you have performed a search for Portland to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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