HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kaua'i

$310+ Cheap flights from Philadelphia (PHL) to Kaua'i

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LIH
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Kaua'i 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 Philadelphia to Kaua'i

Cheapest flights from Philadelphia to Kaua'i
Explore the most affordable flight options available from Philadelphia to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:14 am
PHL
-
LIH
1 stop14h 55m
American Airlines
Thu 9/101:25 pm
LIH
-
PHL
1 stop12h 42m
American Airlines
Deal found 7/22$588
This United Airlines deal was found by Cheapflights users on 7/22. 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 10/3110:30 am
PHL
-
LIH
2 stops17h 00m
United Airlines
Sat 11/711:59 pm
LIH
-
PHL
1 stop12h 10m
United Airlines
Deal found 7/22$594
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/1412:22 pm
PHL
-
LIH
1 stop13h 22m
United Airlines
Sat 9/191:03 pm
LIH
-
PHL
2 stops14h 59m
United Airlines
Deal found 7/22$605
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/156:25 am
PHL
-
LIH
2 stops15h 15m
United Airlines
Sat 9/191:03 pm
LIH
-
PHL
2 stops14h 59m
United Airlines
Deal found 7/22$610
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:17 pm
PHL
-
LIH
2 stops28h 14m
Multiple Airlines
Tue 10/2010:31 pm
LIH
-
PHL
1 stop13h 07m
Multiple Airlines
Deal found 7/21$617
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
PHL
-
LIH
2 stops17h 31m
Multiple Airlines
Thu 11/1211:24 pm
LIH
-
PHL
1 stop12h 25m
Multiple Airlines
Deal found 7/21$618

Find flight deals from Philadelphia to Kaua'i

Keep the following information in mind while searching for Philadelphia to Kaua'i flight deals. Data was last updated July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$588
(United Airlines)

One-way from

$310
(Delta)

Popular in

December

Cheapest in

February

Average price

$1,176
Provider with most accurate pricing for Philadelphia-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Lihue flights.
Search Deals
From Philadelphia to Kaua'i
Search Deals
One-way flight from Philadelphia to Kaua'i
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($188 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Kaua'i 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 July 24, 2026.
Use the filters below to find and compare flights from Philadelphia to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Tue 9/15

8:00 am-3:40 pm

1 stop13h 40m

Lihue

Tue 9/22

7:35 pm-5:54 pm

2 stops16h 19m

$594

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Mon 9/21

8:00 am-3:40 pm

1 stop13h 40m

Lihue

Fri 9/25

1:05 pm-9:42 am

2 stops14h 37m

$594

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Wed 9/9

6:16 am-3:40 pm

2 stops15h 24m

Lihue

Mon 9/14

7:35 pm-3:50 pm

1 stop14h 15m

$594

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Tue 9/15

8:00 am-3:40 pm

1 stop13h 40m

Lihue

Sat 9/19

1:03 pm-10:02 am

2 stops14h 59m

$605

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Wed 10/14

4:17 pm-2:31 pm

2 stops28h 14m

Lihue

Tue 10/20

10:31 pm-5:38 pm

1 stop13h 07m

$617

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Wed 10/14

6:41 pm-9:27 pm

1 stop32h 46m

Lihue

Tue 10/20

10:31 pm-5:38 pm

1 stop13h 07m

$653

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Fri 9/18

4:48 pm-9:42 am

2 stops22h 54m

Lihue

Fri 9/25

3:45 pm-5:56 pm

2 stops20h 11m

$693

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Thu 9/3

9:55 pm-11:29 am

1 stop19h 34m

Lihue

Thu 9/10

1:25 pm-9:47 am

2 stops14h 22m

$706
Quickest round-trip

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Thu 10/1

8:00 am-3:40 pm

1 stop13h 40m

Lihue

Tue 10/13

12:52 pm-7:49 am

1 stop12h 57m

$733
Cheapest one-way

PhiladelphiaLihue

PHL - LIH

PHLLIH

Philadelphia

Sun 9/13

6:15 am-7:10 pm

2 stops18h 55m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Philadelphia to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Philadelphia 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 Philadelphia to Kaua'i

What is the cheapest month to book a flight from Philadelphia to Kaua'i?

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Kaua'i (average of $667). Flying from Philadelphia to Kaua'i in December is currently the most expensive (average of $1,935). 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 Kaua'i

Get insights into the airlines that provide service to Kaua'i. 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 Kaua'i. Reviews last updated July 24, 2026.
Get a feel of what it's like to fly with Alaska Airlines,United Airlines, andAmerican Airlines from Philadelphia to Kaua'i by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,706 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Alaska Airlines
7.9
Good
12,706 reviews
Alaska Airlines
7.9
Good
12,706 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
United Airlines
7.4
Good
10,029 reviews
Alaska Airlines
7.9
Good
12,706 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
American Airlines
7.1
Good
11,843 reviews
Alaska Airlines
7.9
Good
12,706 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Kaua'i. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Kaua'i?

    Located just 7.0 mi from the city center, Philadelphia (PHL) is the airport most travelers will use when flying to Kaua'i from Philadelphia.

  • How long is the flight from Philadelphia to Kaua'i?

    There are many flights that can get you from Philadelphia to Kaua'i in 13h 40m. Fly via United Airlines to get the fastest option. The distance from Philadelphia to Kaua'i is about 4954 mi.

  • Can I find deals for flights from Philadelphia to Kaua'i that include hotel bookings?

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

  • How can I find direct flights from Philadelphia to Kaua'i?

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

  • Can I find deals for business class flights from Philadelphia to Kaua'i?

    Yes. Cheapflights offers flight deals from Philadelphia to Kaua'i 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 Philadelphia to Kaua'i?

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Kaua'i (average of $667). Flying from Philadelphia to Kaua'i in December is currently the most expensive (average of $1,935). 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

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.

Top 3 airlines flying from Philadelphia to Kaua'i

Discover the top 3 airlines that operate flights from Philadelphia to Kaua'i. 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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$667Average$1,013FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$667Average$1,004FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$720Average$1,176FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.