DLH - PHL

$458 Find Cheap Flights from Duluth to Philadelphia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Philadelphia departing on 2/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Philadelphia, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$458
Overall average: $383
United Airlines
Fri 2/13Wed 2/18
DLH - PHL • 1 stop
Cheapest one-way
Multiple Airlines
Wed 1/28
DLH - PHL • multi-stop
When to travel
June
Cheapest • 43% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Duluth to Philadelphia (DLH-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Duluth to Philadelphia

Fri, Feb 13 - Wed, Feb 18
United Airlines Logo
11:20 am - 5:14 pm
DLH
-
PHL
4h 54m
1 stop
United Airlines Logo
8:02 am - 2:37 pm
PHL
-
DLH
7h 35m
1 stop
$458United Airlines
Mon, Feb 9 - Fri, Feb 13
United Airlines Logo
3:05 pm - 9:36 pm
DLH
-
PHL
5h 31m
1 stop
United Airlines Logo
8:02 pm - 9:59 pm
PHL
-
DLH
26h 57m
2 stops
$643United Airlines
Mon, Feb 9 - Fri, Feb 13
United Airlines Logo
3:05 pm - 9:36 pm
DLH
-
PHL
5h 31m
1 stop
United Airlines Logo
5:00 pm - 9:59 pm
PHL
-
DLH
5h 59m
1 stop
$684United Airlines
Mon, Feb 9 - Fri, Feb 13
United Airlines Logo
3:05 pm - 2:10 pm
DLH
-
PHL
22h 05m
2 stops
United Airlines Logo
8:02 pm - 9:59 pm
PHL
-
DLH
26h 57m
2 stops
$758United Airlines
Thu, Jun 4 - Mon, Jun 8
United Airlines Logo
7:53 am - 2:22 pm
DLH
-
PHL
5h 29m
1 stop
United Airlines Logo
6:10 am - 10:44 am
PHL
-
DLH
5h 34m
1 stop
$991United Airlines
Thu, Jun 4 - Mon, Jun 8
United Airlines Logo
11:26 am - 5:22 pm
DLH
-
PHL
4h 56m
1 stop
United Airlines Logo
4:56 pm - 9:57 pm
PHL
-
DLH
6h 01m
1 stop
$1,338United Airlines
Booking Insights

KAYAK's insights & trends for Duluth to Philadelphia flights

Get data-powered insights and trends into flights from Duluth to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Duluth to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Duluth to Philadelphia is June, where tickets cost $260 (return) on average. On the other hand, the most expensive months are October and August, where the average cost of round-trip tickets is $643 and $632 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$458
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 39% increase in price.
Flight from Duluth to Philadelphia

When to book flights from Duluth to Philadelphia

Are your dates flexible? Find out the best times to travel from Duluth to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Duluth to Philadelphia

  • What is the cheapest flight from Duluth to Philadelphia?

    In the last 3 days, the lowest price for a flight from Duluth to Philadelphia was $458 for a round-trip ticket.

  • Do I need a passport to fly between Duluth and Philadelphia?

    No, a passport isn't needed to fly from Duluth to Philadelphia. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Duluth to Philadelphia?

    On your way to Philadelphia, you’ll fly out from Duluth Intl. You’ll be landing at Philadelphia.

  • Which aircraft models fly most regularly from Duluth to Philadelphia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Duluth to Philadelphia?

    SkyTeam is the only airline alliance operating flights between Duluth and Philadelphia.

  • How does KAYAK find such low prices on flights from Duluth to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Duluth to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Duluth to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Duluth is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Duluth to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Duluth with another airline. Booking your flights between Duluth and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Duluth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Duluth to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Duluth to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8123 reviews
8.1Boarding
7.2Food
8.5Crew
7.9Comfort
7.8Entertainment
Airline reviews

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

10.0 ExcellentZebrina, Jan 2026
LGA - CAE
Read more Delta reviews

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

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

Information on your arrival and departure airports

Duluth (DLH)
Philadelphia (PHL)