Find Cheap Flights from Portland to Lambert-St Louis (PWM - STL)

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Fri 2/23
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Good to Know

Average Price:
$401
(avg. price over the last 2 weeks)
Good Deal:
$338
or less (round trip)

When to Book Flights from Portland to Lambert-St Louis

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $337 or less.
The cheapest flight from Portland to Lambert-St Louis was found 38 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 13% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Portland to Lambert-St Louis Flights

How long does a flight from Portland to Lambert-St Louis take?
An average nonstop flight takes 5h 10m, covering a distance of 1094 miles.
Which airlines provide the cheapest flights from Portland to Lambert-St Louis?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($311), American Airlines ($324) and United ($337).
Do I need a passport to fly between Portland and Lambert-St Louis?
No.
What’s the cheapest day of the week to fly Portland to Lambert-St Louis?
For Portland to Lambert-St Louis, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Lambert-St Louis back to Portland, the best deals are generally found on Wednesday, with Sunday being the most expensive.

Book cheap flights from Portland to Lambert-St Louis (round-trip)

Airports
Origin
Portland
$311
only
$311
Destination
St. Louis
$311
only
$311
Tue, Mar 13
PWM
STL
7h 20m
Wed, Mar 14
STL
PWM
6h 37m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
PWM
STL
7h 24m
Wed, Apr 4
STL
PWM
5h 47m
Trip: 23 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BOS
DFW
Excellent 10.0

Everything is excellent!!

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

Sat, Mar 10
PWM
STL
5h 32m
Wed, Mar 14
STL
PWM
7h 04m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
DRO
Okay 5.2

They were able to get us on an earlier flight to shorten the 5 hour layover

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

EWR
SJU
Excellent 10.0

EWR gate personnel tried to move things along. Seat was roomie and the flight attendants were pleasant. Flight was on time and landed early. No complaints.

Long TSA lines at EWR, but they moved.

ICN
SFO
Excellent 10.0

Food drinks and movies

The seats were comfortable and the plane clean. Take off and landing smooth .

LAX
HNL
Good 6.6

One crew is rude while I was ordering food while she is delivering the beverage after the order time. She simply told me they don't have what I want to order and leave. After 5 mins, I pushed the service button and nobody responded. After half hour, I ordered the food from another crew passed by. After I landed, they suppose to return my stroller set at the airplane gate. But they said it is not there, ask us to wait at the airport gate. We walked outside and they broadcasted again, I didn't hear very clearly but followed most parents to walk out. We wait at the baggage claim for almost 1 hour and finally, the baggage crew came back to the gate and found our stroller.

Tue, Apr 10
PWM
STL
5h 10m
Thu, Apr 12
STL
PWM
6h 01m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

GDL
ATL
Excellent 9.6

Expensive food

FLL
DTW
Excellent 10.0

I like service

BOS
LGA
Mediocre 2.0

We were in the plane for 3 hours before we could depart. No one offered us a drink or snack.

EWR
DTW
Mediocre 3.3

I've always wanted to go to all five Manhattan boroughs in one day. Thanks to Delta, that happened.

The plane broke down as we were about to take off. Delta rebooked everyone on to new flights because it was pretty obvious that plane was not going to be fixed in time. The crew did their best given the situation. The situation was absolute bs though - we had to take a cab to JFK for our new flight and do the whole security thing again and all that annoying stuff. Thanks for wasting 8 hours of my life, Delta.

Wed, Mar 14
PWM
STL
7h 24m
Wed, Apr 4
STL
PWM
5h 47m
Trip: 22 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

Tue, Mar 13
PWM
STL
5h 29m
Sat, Apr 7
STL
PWM
4h 52m
Trip: 26 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
PWM
STL
6h 05m
Thu, Mar 15
STL
PWM
7h 04m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ICN
SFO
Excellent 10.0

Food drinks and movies

The seats were comfortable and the plane clean. Take off and landing smooth .

IAD
DEN
Okay 4.0

Never made it on that flight

SEA
DEN
Okay 4.4

Lost bags and every time I called to find out where they were I would get a different story. I was told it would be on the next flight for the next 5 flights.

LAX
HNL
Good 6.6

One crew is rude while I was ordering food while she is delivering the beverage after the order time. She simply told me they don't have what I want to order and leave. After 5 mins, I pushed the service button and nobody responded. After half hour, I ordered the food from another crew passed by. After I landed, they suppose to return my stroller set at the airplane gate. But they said it is not there, ask us to wait at the airport gate. We walked outside and they broadcasted again, I didn't hear very clearly but followed most parents to walk out. We wait at the baggage claim for almost 1 hour and finally, the baggage crew came back to the gate and found our stroller.

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

Tue, Mar 13
PWM
STL
7h 24m
Thu, Apr 5
STL
PWM
7h 07m
Trip: 24 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
AKL
Okay 4.0

American wins tge coach torture contest!

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

BOS
DFW
Excellent 10.0

Everything is excellent!!

Tue, Mar 13
PWM
STL
6h 00m
Thu, Apr 5
STL
PWM
4h 06m
Trip: 24 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 10
PWM
STL
5h 32m
Sat, Mar 17
STL
PWM
7h 04m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
NRT
Good 7.6

Staff was ind and friendly. Generous

Wish there was better food. It was okay.

AMS
IAD
Mediocre 2.0

United's flight was delayed by 6 hours, couldn't make the connecting flight from Washington DC to Denver so they routed me to san francisco, spend the night at the airport there and then travel to Denver in the morning. Fortunately there was a very helpful crew in Schiphol that was able to get us on a flight with american airlines to philadelphia and then on to Denver.

ICN
SFO
Excellent 10.0

Food drinks and movies

The seats were comfortable and the plane clean. Take off and landing smooth .

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

Fri, May 18
PWM
STL
5h 20m
Sat, May 26
STL
PWM
4h 56m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
FLL
DTW
Excellent 10.0

I like service

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

JFK
CDG
Excellent 10.0

The food and the service

GDL
ATL
Excellent 9.6

Expensive food

BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

Wed, Mar 14
PWM
STL
7h 24m
Thu, Apr 5
STL
PWM
7h 07m
Trip: 23 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

LAX
CLT
Mediocre 2.6

I got there safely.

I will never fly American Airlines again. From the moment I checked in with the ticket agent to getting off the plane it was a disaster. The ticket agent was rude, hostile, and dismissive. Employees walked through the line at security forcing everyone to consolidate their belongings to one bag. I had a large wallet in my hand and was told I had to step out of line to put it in my backpack. They only allow you one bag to carry on without paying extra. At the time of boarding they announced that the overhead storage was full so even those that paid extra were still forced to check their bags. The plane was dirty, the service was slow, overall just gross. They don’t have WiFi or in flight entertainment so I paid the $20 to purchase the WiFi. It was worthless. I couldn’t stream anything, even music kept stopping to buffer. I understand it will be slower then on ground WiFi, but it was impossible to watch anything and a complete waste of money.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

Thu, Mar 15
PWM
STL
7h 07m
Sat, Mar 17
STL
PWM
7h 04m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
SJU
Excellent 10.0

EWR gate personnel tried to move things along. Seat was roomie and the flight attendants were pleasant. Flight was on time and landed early. No complaints.

Long TSA lines at EWR, but they moved.

IAD
DEN
Okay 4.0

Never made it on that flight

AMS
IAD
Mediocre 2.0

United's flight was delayed by 6 hours, couldn't make the connecting flight from Washington DC to Denver so they routed me to san francisco, spend the night at the airport there and then travel to Denver in the morning. Fortunately there was a very helpful crew in Schiphol that was able to get us on a flight with american airlines to philadelphia and then on to Denver.

SFO
FRA
Excellent 9.0

Entertainment system good. Nice new aircraft 777-300 ER. On-time departure and early arrival.

Vegetarian food choices very limited.

DEN
DRO
Okay 5.2

They were able to get us on an earlier flight to shorten the 5 hour layover

Mon, Mar 12
PWM
STL
7h 24m
Wed, Apr 4
STL
PWM
7h 07m
Trip: 24 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

Sat, Mar 10
PWM
STL
5h 32m
Thu, Mar 15
STL
PWM
7h 04m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
DRO
Okay 5.2

They were able to get us on an earlier flight to shorten the 5 hour layover

SEA
DEN
Okay 4.4

Lost bags and every time I called to find out where they were I would get a different story. I was told it would be on the next flight for the next 5 flights.

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

EWR
SJU
Excellent 10.0

EWR gate personnel tried to move things along. Seat was roomie and the flight attendants were pleasant. Flight was on time and landed early. No complaints.

Long TSA lines at EWR, but they moved.

DEL
EWR
Okay 4.3

The flight was about 9 hours delayed and I didn’t feel like anyone was trying to make up for it

Sun, Jun 17
PWM
STL
5h 59m
Wed, Jun 20
STL
PWM
6h 36m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 15
PWM
STL
5h 45m
Wed, Apr 4
STL
PWM
5h 47m
Trip: 21 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

Sat, Mar 10
PWM
STL
5h 32m
Mon, Mar 19
STL
PWM
7h 04m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
FRA
Excellent 9.0

Entertainment system good. Nice new aircraft 777-300 ER. On-time departure and early arrival.

Vegetarian food choices very limited.

ICN
SFO
Excellent 10.0

Food drinks and movies

The seats were comfortable and the plane clean. Take off and landing smooth .

EWR
SJU
Excellent 10.0

EWR gate personnel tried to move things along. Seat was roomie and the flight attendants were pleasant. Flight was on time and landed early. No complaints.

Long TSA lines at EWR, but they moved.

LAX
NRT
Good 7.6

Staff was ind and friendly. Generous

Wish there was better food. It was okay.

DEN
DRO
Okay 5.2

They were able to get us on an earlier flight to shorten the 5 hour layover

Tue, Jun 19
PWM
STL
6h 40m
Wed, Jun 20
STL
PWM
6h 36m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 15
PWM
STL
5h 50m
Sun, Jun 24
STL
PWM
7h 15m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

BOS
LGA
Mediocre 2.0

We were in the plane for 3 hours before we could depart. No one offered us a drink or snack.

BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

EWR
DTW
Mediocre 3.3

I've always wanted to go to all five Manhattan boroughs in one day. Thanks to Delta, that happened.

The plane broke down as we were about to take off. Delta rebooked everyone on to new flights because it was pretty obvious that plane was not going to be fixed in time. The crew did their best given the situation. The situation was absolute bs though - we had to take a cab to JFK for our new flight and do the whole security thing again and all that annoying stuff. Thanks for wasting 8 hours of my life, Delta.

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

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Portland to Lambert-St Louis Flight Information

Flights Arrive in Lambert-St Louis
Flights Depart from Portland
Flight Price $311
Distance 1094 miles
Airlines American Airlines, United, Delta
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.