STL - DLH

$262 Find Cheap Flights from St. Louis to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Duluth departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Duluth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Duluth, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$262
Delta
Tue 5/5Tue 5/12
STL - DLH • 1 stop
Cheapest one-way
$243
United Airlines
Fri 3/6
STL - DLH • 1 stop
Top airlines
Delta
Cheapest • from $262 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
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We hope you love your trip to Duluth!
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Booking Insights
Flight Deals

Cheap Flights from St. Louis to Duluth (STL-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Duluth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Duluth

Tue, May 5 - Tue, May 12
Delta Logo
5:35 pm - 10:46 pm
STL
-
DLH
5h 11m
1 stop
Delta Logo
12:00 pm - 3:19 pm
DLH
-
STL
3h 19m
1 stop
$262Delta
Wed, Feb 18 - Sun, Feb 22
Delta Logo
3:40 pm - 7:32 pm
STL
-
DLH
3h 52m
1 stop
Delta Logo
5:00 am - 10:43 am
DLH
-
STL
5h 43m
1 stop
$353Delta
Tue, May 5 - Tue, May 12
United Airlines Logo
11:15 am - 5:35 pm
STL
-
DLH
6h 20m
1 stop
United Airlines Logo
6:24 pm - 10:59 pm
DLH
-
STL
4h 35m
1 stop
$426United Airlines
Fri, Feb 27 - Mon, Mar 2
United Airlines Logo
6:25 am - 10:43 am
STL
-
DLH
4h 18m
1 stop
United Airlines Logo
3:19 pm - 9:05 pm
DLH
-
STL
5h 46m
1 stop
$558United Airlines
Fri, Feb 27 - Mon, Mar 2
United Airlines Logo
6:25 am - 10:43 am
STL
-
DLH
4h 18m
1 stop
United Airlines Logo
3:19 pm - 10:13 am
DLH
-
STL
18h 54m
2 stops
$564United Airlines
Sun, Mar 15 - Sat, Mar 21
United Airlines Logo
8:17 am - 6:08 pm
STL
-
DLH
9h 51m
1 stop
United Airlines Logo
7:53 am - 12:27 pm
DLH
-
STL
4h 34m
1 stop
$617United Airlines
Fri, Feb 27 - Mon, Mar 2
United Airlines Logo
6:25 am - 10:43 am
STL
-
DLH
4h 18m
1 stop
United Airlines Logo
3:19 pm - 10:14 pm
DLH
-
STL
30h 55m
3 stops
$686United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
6:00 am - 10:43 am
STL
-
DLH
28h 43m
2 stops
United Airlines Logo
3:19 pm - 9:40 pm
DLH
-
STL
6h 21m
1 stop
$728United Airlines
Sun, Mar 15 - Sat, Mar 21
United Airlines Logo
8:17 am - 6:08 pm
STL
-
DLH
9h 51m
1 stop
United Airlines Logo
11:20 am - 10:16 pm
DLH
-
STL
34h 56m
2 stops
$784United Airlines
Tue, May 5 - Tue, May 12
Delta Logo
10:50 am - 7:57 pm
STL
-
DLH
9h 07m
2 stops
Delta Logo
12:00 pm - 3:19 pm
DLH
-
STL
3h 19m
1 stop
$881Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Duluth flights

Get data-powered insights and trends into flights from St. Louis to Duluth to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from St. Louis to Duluth?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Duluth were found on Delta ($262) and United Airlines ($426).

Good to know

Low seasonApril
Cheapest flight$243
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from St. Louis to Duluth

When to book flights from St. Louis to Duluth

Are your dates flexible? Find out the best times to travel from St. Louis to Duluth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Duluth

  • What is the cheapest flight from St. Louis to Duluth?

    In the last 3 days, the lowest price for a flight from St. Louis to Duluth was $243 for a one-way ticket and $262 for a round-trip.

  • Do I need a passport to fly between St. Louis and Duluth?

    A passport is not required to fly from St. Louis to Duluth.

  • Which aircraft models fly most regularly from St. Louis to Duluth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Duluth?

    Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Duluth, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Duluth, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Duluth are Delta and United Airlines. With an average price for the route of $378 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $492 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Duluth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Duluth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Duluth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Duluth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Duluth with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DLH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Duluth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Duluth from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Duluth

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Duluth. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Duluth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8146 reviews
8.1Boarding
7.2Food
7.8Entertainment
7.9Comfort
8.5Crew
Airline reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

2.0 MediocreAndrea, Jan 2026
CMH - MSP
Read more Delta reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

Good seats in Main cabin, excellent service and excellent landing

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

On time flight. Seat comfort could be better in the Comfort section.

My only complaint on any flight is meals but your gnocchi was good. The worst is breakfast. I can’t understand why you don’t just serve something simple like yogurt, fruit and a muffin or cinnamon roll.

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Everything you need to know for your flight from St. Louis to Duluth

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