$253+ Cheap flights from St. Louis to Duluth (STL - DLH)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DLH
ago. 29 — sep. 51
Round-trip
1 adult, Economy
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Cheapest flights from St. Louis to DuluthExplore the most affordable flight options available from St. Louis to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2026.
Explore the most affordable flight options available from St. Louis to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2026.
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/215:34 pm
STL
- DLH
1 stop5h 07m
Delta
mar. 8/255:15 am
DLH
- STL
1 stop3h 22m
Delta
Deal found 7/26![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/25:36 pm
STL
- DLH
1 stop5h 46m
United Airlines
lun. 10/53:10 pm
DLH
- STL
1 stop6h 11m
United Airlines
Deal found 7/27![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/265:30 pm
STL
- DLH
1 stop5h 52m
United Airlines
jue. 8/276:23 pm
DLH
- STL
1 stop4h 36m
United Airlines
Deal found 7/29![United Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/116:20 am
STL
- DLH
1 stop4h 41m
Delta
sáb. 8/155:15 am
DLH
- STL
1 stop5h 08m
Delta
Deal found 7/27![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/146:20 am
STL
- DLH
1 stop4h 41m
Delta
mar. 8/185:15 am
DLH
- STL
1 stop3h 22m
Delta
Deal found 7/30![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/213:52 pm
STL
- DLH
1 stop3h 33m
Delta
vie. 9/2511:43 am
DLH
- STL
1 stop3h 29m
Delta
Deal found 7/27![Delta logo]()
$438
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/313:57 pm
STL
- DLH
1 stop3h 28m
Delta
dom. 8/25:00 am
DLH
- STL
1 stop5h 28m
Delta
Deal found 7/29![Delta logo]()
$448
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/215:30 pm
STL
- DLH
1 stop5h 52m
United Airlines
mar. 8/256:23 pm
DLH
- STL
2 stops18h 17m
United Airlines
Deal found 7/26![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1312:59 pm
STL
- DLH
1 stop4h 35m
United Airlines
lun. 8/1711:18 am
DLH
- STL
1 stop4h 20m
United Airlines
Deal found 7/29![United Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2112:59 pm
STL
- DLH
1 stop21h 41m
United Airlines
vie. 9/253:10 pm
DLH
- STL
2 stops23h 00m
United Airlines
Deal found 7/27![United Airlines logo]()
$650
Best flights from St. Louis to DuluthDiscover carefully curated flight deals from St. Louis to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2026.
Discover carefully curated flight deals from St. Louis to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2026.
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/25:36 pm
STL
- DLH
1 stop5h 46m
United Airlines
lun. 10/53:10 pm
DLH
- STL
1 stop6h 11m
United Airlines
Deal found 7/27![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/105:34 pm
STL
- DLH
1 stop5h 07m
Delta
vie. 8/1411:41 am
DLH
- STL
1 stop5h 03m
Delta
Deal found 7/26![Delta logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1312:59 pm
STL
- DLH
1 stop4h 35m
United Airlines
lun. 8/1711:18 am
DLH
- STL
1 stop4h 20m
United Airlines
Deal found 7/29![United Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2112:59 pm
STL
- DLH
1 stop21h 41m
United Airlines
vie. 9/253:10 pm
DLH
- STL
2 stops23h 00m
United Airlines
Deal found 7/27![United Airlines logo]()
$650
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/155:34 pm
STL
- DLH
1 stop5h 07m
Delta
lun. 8/1711:41 am
DLH
- STL
1 stop3h 29m
Delta
Deal found 7/29![Delta logo]()
$733
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/205:30 pm
STL
- DLH
1 stop5h 40m
United Airlines
mar. 9/226:24 pm
DLH
- STL
1 stop17h 33m
United Airlines
Deal found 7/27![United Airlines logo]()
$664
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/146:20 am
STL
- DLH
1 stop4h 41m
Delta
mar. 8/185:15 am
DLH
- STL
2 stops7h 59m
Delta
Deal found 7/30![Delta logo]()
$1,006
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/107:05 pm
STL
- DLH
1 stop4h 16m
United Airlines
vie. 8/146:23 pm
DLH
- STL
2 stops18h 17m
United Airlines
Deal found 7/26![United Airlines logo]()
$858
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/910:33 am
STL
- DLH
2 stops9h 11m
Delta
jue. 8/135:15 am
DLH
- STL
1 stop5h 08m
Delta
Deal found 7/25![Delta logo]()
$1,130
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/1512:44 pm
STL
- DLH
2 stops10h 38m
United Airlines
lun. 8/176:23 pm
DLH
- STL
1 stop4h 36m
United Airlines
Deal found 7/29![United Airlines logo]()
$1,086
Last-minute flights from St. Louis to DuluthDiscover last-minute flight deals from St. Louis to Duluth. Data last updated julio 30, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Duluth. Data last updated julio 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/313:57 pm
STL
- DLH
1 stop3h 28m
Delta
dom. 8/25:00 am
DLH
- STL
1 stop5h 28m
Delta
Deal found 7/29![Delta logo]()
$448
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/98:48 am
STL
- DLH
1 stop6h 43m
Delta
jue. 8/1311:41 am
DLH
- STL
1 stop3h 29m
Delta
Deal found 7/25![Delta logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/98:00 am
STL
- DLH
1 stop6h 26m
United Airlines
jue. 8/137:45 am
DLH
- STL
1 stop4h 12m
United Airlines
Deal found 7/25![United Airlines logo]()
$781
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/116:20 am
STL
- DLH
1 stop4h 41m
Delta
sáb. 8/155:15 am
DLH
- STL
1 stop5h 08m
Delta
Deal found 7/27![Delta logo]()
$338
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/117:00 am
STL
- DLH
2 stops16h 22m
United Airlines
sáb. 8/156:23 pm
DLH
- STL
1 stop4h 36m
United Airlines
Deal found 7/27![United Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1312:59 pm
STL
- DLH
1 stop4h 35m
United Airlines
lun. 8/1711:18 am
DLH
- STL
1 stop4h 20m
United Airlines
Deal found 7/29![United Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/146:20 am
STL
- DLH
1 stop4h 41m
Delta
mar. 8/185:15 am
DLH
- STL
1 stop3h 22m
Delta
Deal found 7/30![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/155:34 pm
STL
- DLH
1 stop5h 07m
Delta
lun. 8/1711:41 am
DLH
- STL
1 stop3h 29m
Delta
Deal found 7/29![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/215:34 pm
STL
- DLH
1 stop5h 07m
Delta
mar. 8/255:15 am
DLH
- STL
1 stop3h 22m
Delta
Deal found 7/26![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/215:30 pm
STL
- DLH
1 stop5h 52m
United Airlines
mar. 8/256:23 pm
DLH
- STL
2 stops18h 17m
United Airlines
Deal found 7/26![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/265:30 pm
STL
- DLH
1 stop5h 52m
United Airlines
jue. 8/276:23 pm
DLH
- STL
1 stop4h 36m
United Airlines
Deal found 7/29![United Airlines logo]()
$326
One-way flights from St. Louis to DuluthSearch for one-way flight options from St. Louis to Duluth. Find affordable one-way fares based on user searches. Data last updated julio 30, 2026.
Search for one-way flight options from St. Louis to Duluth. Find affordable one-way fares based on user searches. Data last updated julio 30, 2026.
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/276:15 am
STL
- DLH
1 stop4h 48m
Delta
Deal found 7/29![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/275:36 pm
STL
- DLH
1 stop5h 46m
United Airlines
Deal found 7/28![United Airlines logo]()
$293
Find flight deals from St. Louis to Duluth
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $308 (Delta) |
One-way from | $253 (Delta) |
Popular in | September |
Cheapest in | April |
Average price | $558 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 30, 2026.
Use the filters below to find and compare flights from St. Louis to Duluth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
vie. 10/2
5:36 pm-11:22 pm
1 stop5h 46m
Duluth Intl
lun. 10/5
3:10 pm-9:21 pm
1 stop6h 11m
$323
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
jue. 8/13
12:59 pm-5:34 pm
1 stop4h 35m
Duluth Intl
lun. 8/17
11:18 am-3:38 pm
1 stop4h 20m
$595
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
lun. 9/21
12:59 pm-10:40 am
1 stop21h 41m
Duluth Intl
vie. 9/25
3:10 pm-2:10 pm
2 stops23h 00m
$650
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
dom. 9/20
5:30 pm-11:10 pm
1 stop5h 40m
Duluth Intl
mar. 9/22
6:24 pm-11:57 am
1 stop17h 33m
$664
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
lun. 8/10
5:34 pm-10:41 pm
1 stop5h 07m
Duluth Intl
vie. 8/14
11:41 am-4:44 pm
1 stop5h 03m
$726
Quickest round-trip
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
sáb. 8/15
5:34 pm-10:41 pm
1 stop5h 07m
Duluth Intl
lun. 8/17
11:41 am-3:10 pm
1 stop3h 29m
$733
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
lun. 8/10
7:05 pm-11:21 pm
1 stop4h 16m
Duluth Intl
vie. 8/14
6:23 pm-12:40 pm
2 stops18h 17m
$858
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
vie. 8/14
6:20 am-11:01 am
1 stop4h 41m
Duluth Intl
mar. 8/18
5:15 am-1:14 pm
2 stops7h 59m
$1,006
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
sáb. 8/15
12:44 pm-11:22 pm
2 stops10h 38m
Duluth Intl
lun. 8/17
6:23 pm-10:59 pm
1 stop4h 36m
$1,086
St. LouisDuluth
STL - DLH
STLDLH
Lambert-St Louis
dom. 8/9
10:33 am-7:44 pm
2 stops9h 11m
Duluth Intl
jue. 8/13
5:15 am-10:23 am
1 stop5h 08m
$1,130
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Duluth
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Duluth in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Duluth flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Duluth
Have a flexible travel schedule? Discover the best time to fly to Duluth from St. Louis with our price prediction graph.
STL-DLH
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Duluth
Get insights into the airlines that provide service to Duluth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Duluth. Reviews last updated julio 30, 2026.
Peruse reviews from past customers who have flown with Delta from St. Louis to Duluth to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Aug 2023
BDL - MSP
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Duluth?
Book flights to Duluth if you plan to visit one of these locationsTwo Harbors
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St. Louis and Duluth flights
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Top airline flying from St. Louis to Duluth
Discover the top airline that operate flights from St. Louis to Duluth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$407 | FlexibilityNo cancel fee | On-timeN/A |