$318+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — PHL
Sep 29 — Oct 61
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
One-way
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 August 30, 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 August 30, 2026.
This Delta deal was found by Cheapflights users on 8/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:43 am -
1 stop5h 16m
Tue 9/226:59 pm -
1 stop4h 36m
Deal found 8/28![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 8/27. 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.
Wed 9/168:10 am -
1 stop5h 29m
Tue 9/225:45 am -
1 stop6h 18m
Deal found 8/27![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 10/176:00 am -
2 stops7h 20m
Sat 10/246:10 am -
1 stop5h 32m
Deal found 8/26![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 8/27. 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.
Fri 9/114:11 pm -
1 stop6h 45m
Tue 9/155:45 am -
1 stop6h 18m
Deal found 8/27![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 9/97:45 am -
1 stop5h 55m
Sat 9/128:30 am -
1 stop6h 59m
Deal found 8/29![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Wed 11/116:23 am -
1 stop6h 54m
Sat 11/146:46 pm -
1 stop5h 28m
Deal found 8/27![United Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Wed 9/167:45 am -
2 stops10h 09m
Tue 9/2211:04 am -
1 stop7h 44m
Deal found 8/25![United Airlines logo]()
$544
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 August 30, 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 August 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 11/116:23 am -
1 stop6h 54m
Sat 11/146:46 pm -
1 stop5h 28m
Deal found 8/28![United Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 9/97:45 am -
2 stops10h 09m
Sat 9/123:05 pm -
2 stops9h 15m
Deal found 8/29![United Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Wed 9/167:45 am -
2 stops10h 09m
Tue 9/2211:04 am -
1 stop7h 44m
Deal found 8/25![United Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 10/177:45 am -
2 stops9h 57m
Sat 10/246:15 am -
2 stops9h 14m
Deal found 8/26![United Airlines logo]()
$561
Last-minute flights from Duluth to PhiladelphiaDiscover last-minute flight deals from Duluth to Philadelphia. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Philadelphia. Data last updated August 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 9/97:45 am -
1 stop5h 55m
Sat 9/128:30 am -
1 stop6h 59m
Deal found 8/29![United Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 8/27. 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.
Fri 9/114:11 pm -
1 stop6h 45m
Tue 9/155:45 am -
1 stop6h 18m
Deal found 8/27![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/1211:18 am -
1 stop7h 13m
Wed 9/166:56 pm -
1 stop5h 24m
Deal found 8/28![United Airlines logo]()
$564
This Delta deal was found by Cheapflights users on 8/27. 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.
Wed 9/168:10 am -
1 stop5h 29m
Tue 9/225:45 am -
1 stop6h 18m
Deal found 8/27![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Wed 9/167:45 am -
2 stops10h 09m
Tue 9/2211:04 am -
1 stop7h 44m
Deal found 8/25![United Airlines logo]()
$544
This Delta deal was found by Cheapflights users on 8/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:43 am -
1 stop5h 16m
Tue 9/226:59 pm -
1 stop4h 36m
Deal found 8/28![Delta logo]()
$318
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/1911:18 am -
1 stop5h 36m
Tue 9/2210:30 am -
2 stops8h 18m
Deal found 8/28![United Airlines logo]()
$556
One-way flights from Duluth to PhiladelphiaSearch for one-way flight options from Duluth to Philadelphia. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Duluth to Philadelphia. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This Delta deal was found by Cheapflights users on 8/25. 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.
Tue 9/84:11 pm -
1 stop6h 47m
Deal found 8/25![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Tue 9/87:45 am -
2 stops10h 09m
Deal found 8/25![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Mon 9/76:23 pm -
1 stop5h 36m
Deal found 8/26![United Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 9/126:32 pm -
2 stops21h 58m
Deal found 8/28![United Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 8/26. 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.
Mon 9/711:41 am -
2 stops12h 38m
Deal found 8/26![Delta logo]()
$608
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 August 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $318 (Delta) |
Popular in | October |
Cheapest in | August |
Average price | $343 |
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 August 30, 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
Quickest round-trip
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
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/9
7:45 am-6:54 pm
2 stops10h 09m
Philadelphia
Sat 9/12
3:05 pm-11:20 pm
2 stops9h 15m
$519
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Wed 9/16
7:45 am-6:54 pm
2 stops10h 09m
Philadelphia
Tue 9/22
11:04 am-5:48 pm
1 stop7h 44m
$544
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Sat 10/17
7:45 am-6:42 pm
2 stops9h 57m
Philadelphia
Sat 10/24
6:15 am-2:29 pm
2 stops9h 14m
$561
Cheapest one-way
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Sat 9/12
11:18 am-7:31 pm
1 stop7h 13m
$378
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Tue 9/8
7:45 am-6:54 pm
2 stops10h 09m
$384
Quickest one-way
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Mon 9/7
6:23 pm-12:59 am
1 stop5h 36m
$478
DuluthPhiladelphia
DLH Duluth Intl - PHL Philadelphia
DLHPHL
Duluth Intl
Mon 9/7
11:41 am-1:19 am
2 stops12h 38m
$608
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 August.
| 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 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 August 30, 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.
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentRona,Feb 2024
MSP - DEN
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentRona,Feb 2024
MSP - DEN
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Crew
8.5
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
Wildwood Crest
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland
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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Complete your trip
Complete your trip to Philadelphia by adding a car rental and/or hotel reservation to your travel itinerary.
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Duluth and Philadelphia flights
Browse other Duluth and Philadelphia flight options. Last updated on August 30, 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 August 30, 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 August 30, 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 August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$271 | Average$502 | FlexibilityNo cancel fee | On-time69% |