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$248+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — PHL
Oct 26 — Nov 21
Sun 10/26
Sun 11/2
1 adult, Economy
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Cheap 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 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$248
(Delta)

Popular in

October

Cheapest in

June

Average price

$402
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. 12% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Duluth to Philadelphia

Cheapest flights from Duluth to Philadelphia
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 26, 2025.

This Delta deal was found by Cheapflights users on 9/25. 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.
Fri 10/104:10 pmDLH - PHL
1 stop6h 40mDelta
Tue 10/146:00 amPHL - DLH
1 stop6h 22mDelta
Deal found 9/25$353
This Delta deal was found by Cheapflights users on 9/26. 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.
Fri 9/264:20 pmDLH - PHL
1 stop6h 35mDelta
Sun 9/286:00 amPHL - DLH
1 stop5h 07mDelta
Deal found 9/26$378
This Delta deal was found by Cheapflights users on 9/24. 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 10/104:10 pmDLH - PHL
1 stop6h 40mDelta
Sun 10/126:00 amPHL - DLH
1 stop6h 22mDelta
Deal found 9/24$393
This Delta deal was found by Cheapflights users on 9/25. 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.
Wed 12/105:00 amDLH - PHL
1 stop4h 56mDelta
Mon 12/156:15 amPHL - DLH
1 stop6h 05mDelta
Deal found 9/25$434

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 2,558,603 searches. Data last updated September 26, 2025.
Use the filters below to find and compare flights from Duluth to Philadelphia that are best for you.

Fly from

Duluth

Fly to

Philadelphia

Route

Depart

Return

Price

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Wed 3/4

12:00 pm-5:20 pm

1 stop4h 20m

Philadelphia

Sat 3/7

6:15 am-11:07 am

1 stop5h 52m

$248

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Fri 10/10

4:10 pm-11:50 pm

1 stop6h 40m

Philadelphia

Tue 10/14

6:00 am-11:22 am

1 stop6h 22m

$353

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Fri 10/10

4:10 pm-11:50 pm

1 stop6h 40m

Philadelphia

Sun 10/12

6:00 am-11:22 am

1 stop6h 22m

$393

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Wed 12/10

5:00 am-10:56 am

1 stop4h 56m

Philadelphia

Mon 12/15

6:15 am-11:20 am

1 stop6h 05m

$434

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Sat 11/8

12:02 pm-6:09 pm

1 stop5h 07m

$295

DuluthPhiladelphia

DLH - PHL

DLHPHL

Duluth Intl

Sat 1/3

4:23 pm-11:56 pm

1 stop6h 33m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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
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

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 $236). Flying from Duluth to Philadelphia in March is currently the most expensive (average of $295). 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 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 26, 2025.
Get a feel of what it's like to fly with Delta 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
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • How long is the flight from Duluth to Philadelphia?

    For as low as $248, Delta can have you in Philadelphia from Duluth in 4h 20m. The distance between Duluth and Philadelphia is about 975 mi.

  • What is the cheapest airline to fly from Duluth to Philadelphia round-trip?

    According to our current data, Delta ($248), offers the cheapest pricing from Duluth to Philadelphia. You may be able to fly from Duluth to Philadelphia for 46% less than the average price by searching for this airline.

  • 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 $236). Flying from Duluth to Philadelphia in March is currently the most expensive (average of $295). 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
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Dewey Beach
Ephrata
Camden
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for Duluth to Philadelphia

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Top airline flying from Duluth to Philadelphia

Discover the top airline 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 2,558,603 searches. Data last updated September 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$488FlexibilityNo cancel feeOn-timeN/A

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