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$149+ Cheap flights from Lehigh Valley to Denver (DEN)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — DEN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Lehigh Valley to Denver

Cheapest flights from Lehigh Valley to Denver
Explore the most affordable flight options available from Lehigh Valley to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:50 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Fri 6/55:39 pm
DEN
-
ABE
Nonstop3h 27m
Allegiant Air
Deal found 1/27$204
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:50 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Mon 6/15:42 pm
DEN
-
ABE
Nonstop3h 22m
Allegiant Air
Deal found 1/28$213
This Mytrip deal was found by Cheapflights users on 1/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:50 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Fri 6/510:22 am
DEN
-
ABE
Nonstop3h 27m
Allegiant Air
Deal found 1/28$234
This Delta deal was found by Cheapflights users on 1/28. 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.
Tue 3/35:58 pm
ABE
-
DEN
1 stop6h 50m
Delta
Wed 3/117:05 am
DEN
-
ABE
1 stop8h 12m
Delta
Deal found 1/28$238
This Delta deal was found by Cheapflights users on 1/27. 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.
Tue 3/175:58 pm
ABE
-
DEN
1 stop6h 19m
Delta
Tue 3/243:15 pm
DEN
-
ABE
1 stop5h 41m
Delta
Deal found 1/27$239
This Delta deal was found by Cheapflights users on 1/28. 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.
Tue 3/35:58 pm
ABE
-
DEN
1 stop8h 25m
Delta
Sat 3/77:05 am
DEN
-
ABE
1 stop8h 07m
Delta
Deal found 1/28$247
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:50 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Mon 6/85:39 pm
DEN
-
ABE
Nonstop3h 27m
Allegiant Air
Deal found 1/27$250
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:50 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Fri 6/55:39 pm
DEN
-
ABE
Nonstop3h 27m
Allegiant Air
Deal found 1/27$256
This Delta deal was found by Cheapflights users on 1/27. 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.
Mon 3/165:58 pm
ABE
-
DEN
1 stop8h 11m
Delta
Tue 3/243:15 pm
DEN
-
ABE
1 stop5h 41m
Delta
Deal found 1/27$274
This Delta deal was found by Cheapflights users on 1/28. 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 2/215:58 pm
ABE
-
DEN
1 stop8h 25m
Delta
Wed 2/257:20 am
DEN
-
ABE
1 stop7h 52m
Delta
Deal found 1/28$276
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:04 am
ABE
-
DEN
1 stop6h 47m
American Airlines
Wed 3/254:03 pm
DEN
-
ABE
1 stop6h 26m
American Airlines
Deal found 1/27$297
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/185:23 pm
ABE
-
DEN
1 stop7h 43m
United Airlines
Sat 2/217:45 am
DEN
-
ABE
1 stop7h 03m
United Airlines
Deal found 1/28$299

Find flight deals from Lehigh Valley to Denver

Keep the following information in mind while searching for Lehigh Valley to Denver flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(Kiwi.com)

One-way from

$149
(Delta)

Popular in

February

Cheapest in

September

Average price

$333
Provider with most accurate pricing for Allentown-Bethlehem-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Denver Intl flights.
Search Deals
From Lehigh Valley to Denver Intl
Search Deals
One-way flight from Lehigh Valley to Denver Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lehigh Valley to Denver 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 January 29, 2026.
Use the filters below to find and compare flights from Lehigh Valley to Denver that are best for you.

Fly from

Lehigh Valley

Fly to

Denver

Route

Depart

Return

Price

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$234

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 3/18

5:58 pm-12:09 am

1 stop8h 11m

Denver Intl

Tue 3/24

3:15 pm-10:56 pm

1 stop5h 41m

$239

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 3/3

5:58 pm-12:23 am

1 stop8h 25m

Denver Intl

Sat 3/7

7:05 am-5:12 pm

1 stop8h 07m

$247

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/18

5:23 pm-11:06 pm

1 stop7h 43m

Denver Intl

Sat 2/21

7:45 am-4:48 pm

1 stop7h 03m

$299

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/25

9:00 am-7:55 am

1 stop24h 55m

Denver Intl

Wed 3/4

11:59 pm-8:13 pm

1 stop18h 14m

$326

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/17

5:23 pm-10:05 pm

1 stop6h 42m

Denver Intl

Sat 2/21

7:45 am-4:48 pm

1 stop7h 03m

$334

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 3/3

12:50 pm-5:45 pm

1 stop6h 55m

Denver Intl

Sat 3/7

2:28 pm-12:29 am

2 stops8h 01m

$344

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 5/27

5:40 pm-11:51 pm

1 stop8h 11m

Denver Intl

Sat 6/6

1:35 pm-10:56 pm

1 stop7h 21m

$364

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 5/29

5:40 pm-11:51 pm

1 stop8h 11m

Denver Intl

Sat 6/6

3:10 pm-10:56 pm

1 stop5h 46m

$364

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 2/20

6:04 am-10:51 am

1 stop6h 47m

Denver Intl

Mon 2/23

4:03 pm-12:29 am

1 stop6h 26m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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Best time to book a flight from Lehigh Valley to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Lehigh Valley 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 Lehigh Valley to Denver

What is the cheapest month to book a flight from Lehigh Valley to Denver?

Currently, August is the cheapest month in which you can book a flight from Lehigh Valley to Denver (average of $109). Flying from Lehigh Valley to Denver in April is currently the most expensive (average of $271). 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Lehigh Valley to Denver. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,127 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,215 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,206 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
706 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,056 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Lehigh Valley to Denver. 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 into for flights to Denver from Lehigh Valley?

    Denver Intl (DEN) is the airport you will fly into if you book a flight from Lehigh Valley to Denver. It is only a 18.5 mi journey from Denver Intl (DEN) to Denver’s city center.

  • How popular is this Lehigh Valley to Denver flight route?

    The Lehigh Valley to Denver Intl flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Lehigh Valley to Denver?

    There are many flights that can get you from Lehigh Valley to Denver in 4h 02m. Fly via Allegiant Air, Delta, or United Airlines to get the fastest option. Lehigh Valley and Denver are separated by a distance of 1534 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Lehigh Valley to Denver one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $60. Users have also found prices from $80 and $102 on American Airlines and United Airlines, respectively.

  • What are the cheapest flights from Lehigh Valley to Denver?

    The cheapest flight price from Lehigh Valley to Denver is $158. On average you can expect to pay $262. The most popular route, (Allentown-Bethlehem - Denver Intl), can usually be booked for $213.

  • Can I find deals for flights from Lehigh Valley to Denver that include hotel bookings?

    Yes. In addition to deals on Lehigh Valley to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lehigh Valley to Denver?

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

  • Can I find deals for business class flights from Lehigh Valley to Denver?

    Yes. Cheapflights offers flight deals from Lehigh Valley to Denver 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 Lehigh Valley to Denver?

    Currently, August is the cheapest month in which you can book a flight from Lehigh Valley to Denver (average of $109). Flying from Lehigh Valley to Denver in April is currently the most expensive (average of $271). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
Central City
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lehigh Valley to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Durango flights
Reagan-National to Grand Junction flights
LaGuardia to Durango flights
Philadelphia to Durango flights
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Newark to Grand Junction flights

Top 5 airlines flying from Lehigh Valley to Denver

Discover the top 5 airlines that operate flights from Lehigh Valley to Denver. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$186FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$116Average$218FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$189Average$347FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$208Average$429FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$359FlexibilityNo cancel feeOn-timeN/A

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