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Philadelphia

$318+ Cheap flights from Duluth to Philadelphia (DLH - PHL)

DLH — PHL
Sep 17 — Sep 241
Thu 9/17
Thu 9/24
1 adult, Economy
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Cheap flight deals from Duluth to Philadelphia

Cheapest flights from Duluth to Philadelphia

Fri 10/211:43 am -
1 stop5h 21m
Mon 10/55:45 am -
1 stop6h 18m
Deal found 8/16$318
Fri 9/44:11 pm -
1 stop6h 45m
Mon 9/75:45 am -
1 stop6h 16m
Deal found 8/16$343
Tue 9/17:45 am -
1 stop5h 55m
Sat 9/56:25 am -
1 stop5h 17m
Deal found 8/17$368
Wed 9/1611:43 am -
1 stop5h 21m
Tue 9/226:59 pm -
1 stop4h 36m
Deal found 8/14$388
Wed 9/166:24 pm -
1 stop16h 59m
Tue 9/2210:30 am -
2 stops8h 18m
Deal found 8/13$525
Fri 10/27:45 am -
1 stop5h 58m
Mon 10/53:08 pm -
2 stops9h 14m
Deal found 8/16$527
Fri 9/186:24 pm -
2 stops23h 30m
Sun 9/206:25 am -
1 stop5h 15m
Deal found 8/14$537
Fri 9/184:11 pm -
1 stop6h 45m
Sun 9/205:45 am -
1 stop6h 18m
Deal found 8/14$543

Find flight deals from Duluth to Philadelphia

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
Provider with most accurate pricing for Duluth Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Duluth Intl-Philadelphia flights.
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From Duluth Intl to Philadelphia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
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

Price

Cheapest round-trip

DuluthPhiladelphia

DLH Duluth Intl - PHL Philadelphia

DLHPHL

Duluth Intl

Tue 9/1

4:11 pm-11:56 pm

1 stop6h 45m

Philadelphia

Sat 9/5

5:46 am-11:01 am

1 stop6h 15m

$368

DuluthPhiladelphia

DLH Duluth Intl - PHL Philadelphia

DLHPHL

Duluth Intl

Tue 9/1

6:23 pm-12:59 am

1 stop5h 36m

Philadelphia

Sat 9/5

10:30 am-5:34 pm

2 stops8h 04m

$374
Quickest round-trip

DuluthPhiladelphia

DLH Duluth Intl - PHL Philadelphia

DLHPHL

Duluth Intl

Wed 9/16

11:43 am-6:04 pm

1 stop5h 21m

Philadelphia

Tue 9/22

6:59 pm-10:35 pm

1 stop4h 36m

$388

DuluthPhiladelphia

DLH Duluth Intl - PHL Philadelphia

DLHPHL

Duluth Intl

Sat 1/30

3:14 pm-11:13 pm

1 stop6h 59m

Philadelphia

Wed 2/3

4:56 pm-11:04 pm

1 stop7h 08m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Sorted by cheapest first

Compare providers for flights from Duluth to Philadelphia

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Duluth to Philadelphia

What is the cheapest month to book a flight from Duluth to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Duluth to Philadelphia (average of $343). Flying from Duluth to Philadelphia in October is currently the most expensive (average of $643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Philadelphia

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.
Delta
7.8
Good
8,499 reviews

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Delta
7.8
Good
8,499 reviews
Delta
7.8
Good
8,499 reviews

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
United Airlines
7.4
Good
10,100 reviews
Delta
7.8
Good
8,499 reviews

Food

7.2

Comfort

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Related info for your journey

  • How long is the flight from Duluth to Philadelphia?

    For as low as $374, Delta can have you in Philadelphia from Duluth in 5h 36m. The distance between Duluth and Philadelphia is about 975 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Duluth to Philadelphia round-trip?

    According to our current data, Delta ($263), and United Airlines ($271) offers the cheapest pricing from Duluth to Philadelphia. You may be able to fly from Duluth to Philadelphia for 43% less than the average price by searching for these airlines.

  • Can I find deals for flights from Duluth to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Duluth to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Duluth to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to Philadelphia.

  • Can I find deals for business class flights from Duluth to Philadelphia?

    Yes. Cheapflights offers flight deals from Duluth to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Duluth to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Duluth to Philadelphia (average of $343). Flying from Duluth to Philadelphia in October is currently the most expensive (average of $643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Reading
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

Top 2 airlines flying from Duluth to Philadelphia

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$263Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$271Average$502FlexibilityNo cancel feeOn-time69%

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