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Cheap flights from St. Louis to Portland from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Portland departing on 1/11. 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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Find the cheapest flights from St. Louis to Portland

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Portland that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Portland.

Cheap last minute flights

Planning a quick getaway from St. Louis to Portland? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Portland, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Portland

Find recent round-trip train or bus tickets from St. Louis to Portland.

All round-trip flight deals to Portland

The cheapest plane tickets to Portland found on KAYAK recently.
6:00 am - 11:01 amSTL-PDX
7h 01m1 stop
5:19 pm - 12:57 amPDX-STL
5h 38m1 stop
$198Delta
Find Deal
Tue, Dec 10 - Tue, Dec 17
9:34 am - 5:51 pmSTL-PDX
10h 17m1 stop
5:00 am - 1:32 pmPDX-STL
6h 32m1 stop
$208American Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 17
6:46 pm - 11:03 amSTL-PDX
18h 17m1 stop
12:03 pm - 8:13 amPDX-STL
18h 10m1 stop
$218Frontier
Find Deal
Wed, Dec 4 - Sun, Dec 8
5:00 pm - 11:54 pmSTL-PDX
8h 54m1 stop
6:15 am - 4:51 pmPDX-STL
8h 36m1 stop
$222Delta
Find Deal
Wed, Feb 26 - Sun, Mar 2
2:55 pm - 8:49 pmSTL-PDX
7h 54m1 stop
10:30 am - 12:01 amPDX-STL
11h 31m1 stop
$236Alaska Airlines
Find Deal
Sat, Mar 22 - Sat, Mar 29
9:29 pm - 12:34 pmSTL-PDX
17h 05m1 stop
12:45 pm - 8:13 amPDX-STL
17h 28m1 stop
$239Frontier
Find Deal
Fri, Dec 27 - Tue, Dec 31
2:49 pm - 9:53 pmSTL-PDX
9h 04m1 stop
1:52 pm - 1:53 pmPDX-STL
22h 01m1 stop
$256Alaska Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
4:08 pm - 9:08 pmSTL-PDX
7h 00m1 stop
12:35 pm - 12:12 amPDX-STL
9h 37m1 stop
$257American Airlines
Find Deal
Thu, Dec 12 - Mon, Dec 16
4:36 pm - 11:13 pmSTL-PDX
8h 37m1 stop
11:59 pm - 10:54 amPDX-STL
8h 55m1 stop
$262United Airlines
Find Deal
Thu, Jan 16 - Mon, Jan 20
6:00 am - 12:22 pmSTL-PDX
8h 22m1 stop
1:34 pm - 12:28 amPDX-STL
8h 54m1 stop
$316United Airlines
Find Deal
Tue, Dec 31 - Mon, Jan 6
6:46 pm - 12:15 amSTL-PDX
7h 29m1 stop
$54Frontier
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Sat, Jan 11
5:27 pm - 12:14 amSTL-PDX
8h 47m1 stop
$73Frontier
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Wed, Nov 20
7:29 pm - 3:54 pmSTL-PDX
22h 25m1 stop
$85Frontier
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Wed, Feb 26
2:49 pm - 8:46 pmSTL-PDX
7h 57m1 stop
$99Alaska Airlines
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Tue, Feb 11
2:25 pm - 6:30 pmSTL-PDX
6h 05m1 stop
$104Delta
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Tue, Dec 10
5:00 pm - 11:54 pmSTL-PDX
8h 54m1 stop
$113Delta
Find Deal
Mon, Jan 13
9:39 am - 5:34 pmSTL-PDX
9h 55m1 stop
$139American Airlines
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Thu, Dec 5
4:36 pm - 11:13 pmSTL-PDX
8h 37m1 stop
$158United Airlines
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Thu, Jan 16
1:39 pm - 12:35 amSTL-PDX
12h 56m2 stops
$159United Airlines
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Tue, Dec 17
6:44 am - 3:57 pmSTL-PDX
11h 13m2 stops
$168Alaska Airlines
Find Deal
Thu, Jan 16
5:37 pm - 12:14 amSTL-PDX
8h 37m1 stop
6:05 am - 12:06 amPDX-STL
16h 01m1 stop
$251Frontier
Find Deal
Tue, Nov 19 - Fri, Nov 22
5:37 pm - 12:14 amSTL-PDX
8h 37m1 stop
6:05 am - 12:06 amPDX-STL
16h 01m1 stop
$308Frontier
Find Deal
Tue, Nov 19 - Mon, Nov 25
10:59 pm - 8:57 amSTL-PDX
11h 58m1 stop
6:05 am - 12:06 amPDX-STL
16h 01m1 stop
$328Frontier
Find Deal
Sun, Nov 17 - Sun, Nov 24
2:00 pm - 10:05 pmSTL-PDX
10h 05m1 stop
5:19 pm - 12:42 amPDX-STL
5h 23m1 stop
$335Delta
Find Deal
Fri, Nov 15 - Fri, Nov 22
6:35 pm - 11:44 pmSTL-PDX
7h 09m1 stop
12:59 am - 10:40 amPDX-STL
7h 41m1 stop
$462Delta
Find Deal
Tue, Nov 19 - Mon, Dec 2
10:10 am - 8:13 pmSTL-PDX
12h 03m2 stops
1:42 pm - 12:16 amPDX-STL
8h 34m1 stop
$470United Airlines
Find Deal
Tue, Nov 19 - Fri, Nov 22
6:30 am - 9:14 pmSTL-PDX
16h 44m3 stops
1:42 pm - 12:16 amPDX-STL
8h 34m1 stop
$475United Airlines
Find Deal
Tue, Nov 19 - Fri, Nov 22
10:30 am - 6:00 pmSTL-PDX
9h 30m2 stops
2:55 pm - 11:00 pmPDX-STL
6h 05m1 stop
$510Southwest
Find Deal
Sat, Nov 16 - Tue, Nov 19
7:30 am - 4:25 pmSTL-PDX
10h 55m2 stops
9:15 am - 11:57 pmPDX-STL
12h 42m2 stops
$917Alaska Airlines
Find Deal
Sat, Nov 16 - Tue, Nov 19
7:00 am - 8:14 pmSTL-PDX
15h 14m2 stops
9:59 pm - 1:27 pmPDX-STL
13h 28m2 stops
$1,432Alaska Airlines
Find Deal
Mon, Nov 18 - Wed, Nov 20

American Airlines flights from St. Louis to Portland

Our best American Airlines deals on St. Louis to Portland flight tickets
American Airlines
Dec 10
STL9:34 amLambert-St Louis
10h 17m
1 stop
PDX5:51 pmPortland
Dec 17
PDX5:00 amPortland
6h 32m
1 stop
STL1:32 pmLambert-St Louis
American Airlines
Dec 12
STL4:08 pmLambert-St Louis
7h 00m
1 stop
PDX9:08 pmPortland
Dec 16
PDX12:35 pmPortland
9h 37m
1 stop
STL12:12 amLambert-St Louis
American Airlines
Dec 6
STL5:05 amLambert-St Louis
7h 58m
1 stop
PDX11:03 amPortland
Dec 13
PDX12:35 pmPortland
9h 37m
1 stop
STL12:12 amLambert-St Louis

United Airlines flights from St. Louis to Portland

Our best United Airlines deals on St. Louis to Portland flight tickets
United Airlines
Jan 16
STL4:36 pmLambert-St Louis
8h 37m
1 stop
PDX11:13 pmPortland
Jan 20
PDX11:59 pmPortland
8h 55m
1 stop
STL10:54 amLambert-St Louis
United Airlines
Dec 31
STL6:00 amLambert-St Louis
8h 22m
1 stop
PDX12:22 pmPortland
Jan 6
PDX1:34 pmPortland
8h 54m
1 stop
STL12:28 amLambert-St Louis
United Airlines
Dec 17
STL1:39 pmLambert-St Louis
12h 56m
2 stops
PDX12:35 amPortland
Jan 12
PDX10:48 pmPortland
9h 59m
1 stop
STL10:47 amLambert-St Louis

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

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 St. Louis to Portland?

September. The cheapest time of year to fly to Portland from St. Louis is September. Most expensive is March

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

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

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

In the evening. St. Louis to Portland flights are approximately 31% more expensive at noon than in the evening

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

Spirit Airlines. Spirit Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from St. Louis to Portland

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

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

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

10 days before. The cheapest time to buy a flight from St. Louis to Portland is approximately 10 days to departure

How many flights depart from St. Louis to Portland on average per week?

The number of flights available between St. Louis and Portland is 4 per week as of November 2024. The most frequent departure day is Sunday, with 25% of weekly flights leaving on this day.

Can stopping save me money on St. Louis to Portland flights?

You could potentially save up to 57% on your flight if you consider stops on a St. Louis to Portland flight.

How have St. Louis to Portland flight prices changed over time?

As of November 2024, prices for St. Louis to Portland flights are approximately 28% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

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

Best Price Found

$54

Fastest flight time

6h 05m

Direct flights

None

Airports in Portland

1 airport
The best one-way flight to Portland from St. Louis in the past 72 hours is $54. The best round-trip flight deal from St. Louis to Portland found on momondo in the last 72 hours is $198.
The fastest flight from St. Louis to Portland takes 6h 05m
There are no direct flights from St. Louis to Portland. Popular non-direct route for this connection is Lambert-St Louis Airport - Portland Airport.
There is 1 airport near Portland: Portland (PDX)

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

    Portland is 1718.1 mi away from Lambert-St Louis. Typically, this will take 6h 05m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Portland Airport are refreshed on a daily basis.

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

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

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Portland?

  • What is the most popular airline from St. Louis to Portland?


Best airlines flying from St. Louis to Portland

Compare and see reviews for airlines that fly from St. Louis to Portland with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $94Free CancellationRating
6.3
8,167 reviews
Search Spirit Airlines flights
FrontierPriceFrom $108Free CancellationRating
6.1
3,551 reviews
Search Frontier flights
American AirlinesPriceFrom $185Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $215Free CancellationRating
8.0
9,439 reviews
Search Alaska Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
8,788 reviews
Search Delta flights
United AirlinesPriceFrom $289Free CancellationRating
7.4
9,194 reviews
Search United Airlines flights
SouthwestPriceFrom $306Free CancellationRating
8.1
5,045 reviews
Search Southwest flights
  • Southwest Flights From St. Louis to Portland

    Southwest is one of the most popular airlines flying from St. Louis to Portland, operating 4 flights/week on average for this route. A good Southwest flight deal for St. Louis to Portland starts from $306 round-trip, up to an average price of $433. Our users have rated Southwest at 8.1/10.


Why use momondo?

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

Finding the right flight to Portland from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.

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

Flights from St. Louis to Portland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential St. Louis to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from St. Louis and alert you when they change.


An easier way to manage your Portland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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