$363+ Cheap flights from Duluth to Philadelphia (DLH - PHL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — PHL
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Duluth to Philadelphia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Duluth to Philadelphia
Cheapest
Best
Last-minute
Cheapest flights from Duluth to PhiladelphiaExplore the most affordable flight options available from Duluth to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Duluth to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/14:11 pm -
1 stop6h 45m
Tue 10/65:45 am -
1 stop6h 59m
Deal found 9/14![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 9/306:00 am -
2 stops7h 20m
Tue 10/66:10 am -
1 stop5h 32m
Deal found 9/12![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/111:18 am -
1 stop7h 06m
Tue 10/66:15 am -
2 stops9h 14m
Deal found 9/14![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 10/165:14 am -
1 stop4h 35m
Sun 10/185:45 am -
1 stop6h 59m
Deal found 9/13![Delta logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/911:18 am -
1 stop5h 56m
Fri 10/167:10 pm -
1 stop5h 12m
Deal found 9/11![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/911:18 am -
1 stop5h 56m
Thu 11/56:15 am -
1 stop5h 26m
Deal found 9/11![United Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/2611:18 am -
1 stop7h 06m
Wed 9/306:10 am -
1 stop5h 32m
Deal found 9/11![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 11/116:23 am -
1 stop6h 54m
Sat 11/146:46 pm -
1 stop5h 28m
Deal found 9/10![United Airlines logo]()
$468
Best flights from Duluth to PhiladelphiaDiscover carefully curated flight deals from Duluth to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Duluth to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/12. 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.
Wed 9/3011:43 am -
1 stop5h 21m
Wed 10/75:45 am -
1 stop6h 59m
Deal found 9/12![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 9/306:00 am -
2 stops7h 20m
Tue 10/66:10 am -
1 stop5h 32m
Deal found 9/12![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 9/3011:43 am -
1 stop5h 21m
Tue 10/65:45 am -
1 stop6h 59m
Deal found 9/13![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/111:18 am -
1 stop7h 06m
Tue 10/66:15 am -
2 stops9h 14m
Deal found 9/14![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 10/14:11 pm -
1 stop6h 45m
Sun 10/411:39 am -
1 stop4h 50m
Deal found 9/13![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 9/3011:43 am -
1 stop5h 21m
Sun 10/411:39 am -
1 stop4h 50m
Deal found 9/13![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/911:18 am -
1 stop5h 56m
Fri 10/167:10 pm -
1 stop5h 12m
Deal found 9/11![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 11/116:23 am -
1 stop6h 54m
Sat 11/146:46 pm -
1 stop5h 28m
Deal found 9/10![United Airlines logo]()
$468
Last-minute flights from Duluth to PhiladelphiaDiscover last-minute flight deals from Duluth to Philadelphia. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Philadelphia. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/2611:18 am -
1 stop7h 06m
Wed 9/306:10 am -
1 stop5h 32m
Deal found 9/11![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 9/306:00 am -
2 stops7h 20m
Tue 10/66:10 am -
1 stop5h 32m
Deal found 9/12![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/14:11 pm -
1 stop6h 45m
Tue 10/65:45 am -
1 stop6h 59m
Deal found 9/14![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/111:18 am -
1 stop7h 06m
Tue 10/66:15 am -
2 stops9h 14m
Deal found 9/14![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Thu 10/111:18 am -
1 stop7h 06m
Mon 10/56:15 am -
2 stops9h 14m
Deal found 9/13![United Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/911:18 am -
1 stop5h 56m
Fri 10/167:10 pm -
1 stop5h 12m
Deal found 9/11![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/911:18 am -
1 stop5h 56m
Thu 11/56:15 am -
1 stop5h 26m
Deal found 9/11![United Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 10/165:14 am -
1 stop4h 35m
Sun 10/185:45 am -
1 stop6h 59m
Deal found 9/13![Delta logo]()
$403
Find flight deals from Duluth to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Philadelphia (PHL). 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Delta) |
Popular in | September |
Cheapest in | August |
Average price | $679 |
Cheapflights Fare Finder
Customize your flight search to find flights from Duluth to Philadelphia 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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Duluth to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/30
11:43 am-6:04 pm
1 stop5h 21m
Philadelphia
Wed 10/7
5:45 am-11:44 am
1 stop6h 59m
$363
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/30
11:43 am-6:04 pm
1 stop5h 21m
Philadelphia
Tue 10/6
5:45 am-11:44 am
1 stop6h 59m
$363
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Thu 10/1
4:11 pm-11:56 pm
1 stop6h 45m
Philadelphia
Sun 10/4
11:39 am-3:29 pm
1 stop4h 50m
$363
Quickest round-trip
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/30
11:43 am-6:04 pm
1 stop5h 21m
Philadelphia
Sun 10/4
11:39 am-3:29 pm
1 stop4h 50m
$363
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/30
6:00 am-2:20 pm
2 stops7h 20m
Philadelphia
Tue 10/6
6:10 am-10:42 am
1 stop5h 32m
$369
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Thu 10/1
11:18 am-7:24 pm
1 stop7h 06m
Philadelphia
Tue 10/6
6:15 am-2:29 pm
2 stops9h 14m
$379
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Fri 10/9
11:18 am-6:14 pm
1 stop5h 56m
Philadelphia
Fri 10/16
7:10 pm-11:22 pm
1 stop5h 12m
$424
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 11/11
6:23 am-2:17 pm
1 stop6h 54m
Philadelphia
Sat 11/14
6:46 pm-11:14 pm
1 stop5h 28m
$468
Sorted by cheapest first
Compare providers for flights from Duluth to Philadelphia
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 Duluth to Philadelphia in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Duluth-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Duluth-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Duluth-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Duluth-Philadelphia 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 Duluth-Philadelphia 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 Duluth to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Duluth with our price prediction graph.
DLH-PHL
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.
Cheapflights Insights
Everything you need to know about your flight from Duluth to Philadelphia
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated September 15, 2026.
Get a feel of what it's like to fly with Delta and United Airlines from Duluth to Philadelphia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentRona,Feb 2024
MSP - DEN
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentRona,Feb 2024
MSP - DEN
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentRona,Feb 2024
MSP - DEN
Related info for your journey
Find useful and relevant information for your journey from Duluth to Philadelphia. 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 Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
Reading
King of Prussia
Camden
Ocean City
Wildwood Crest
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Vineland
Millville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Duluth and Philadelphia flights
Browse other Duluth and Philadelphia flight options. Last updated on September 15, 2026.
Other flights from Duluth
Browse through other flights departing from Duluth. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Duluth to Philadelphia
Discover the top 2 airlines that operate flights from Duluth to Philadelphia. 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$502 | FlexibilityNo cancel fee | On-time69% |