HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$143+ Cheap flights from Boston to Lexington (BOS - LEX)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LEX
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Lexington 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 Boston to Lexington

Cheapest flights from Boston to Lexington
Explore the most affordable flight options available from Boston to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 8/146:42 pm
BOS
-
LEX
1 stop5h 13m
United Airlines
Wed 8/197:00 am
LEX
-
BOS
1 stop7h 07m
United Airlines
Deal found 7/3$309
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Fri 9/116:50 pm
BOS
-
LEX
1 stop5h 15m
United Airlines
Sat 9/127:00 am
LEX
-
BOS
2 stops9h 48m
United Airlines
Deal found 7/5$310
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Fri 8/146:42 pm
BOS
-
LEX
1 stop5h 13m
United Airlines
Sun 8/167:00 am
LEX
-
BOS
1 stop5h 50m
United Airlines
Deal found 7/7$320
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Thu 7/236:43 pm
BOS
-
LEX
1 stop5h 16m
United Airlines
Mon 7/275:55 pm
LEX
-
BOS
1 stop7h 19m
United Airlines
Deal found 7/6$331
This Delta deal was found by Cheapflights users on 7/8. 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 11/39:05 am
BOS
-
LEX
1 stop5h 44m
Delta
Sat 11/71:04 pm
LEX
-
BOS
1 stop6h 17m
Delta
Deal found 7/8$341
This Delta deal was found by Cheapflights users on 7/3. 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 8/155:30 am
BOS
-
LEX
1 stop6h 41m
Delta
Sun 8/165:56 pm
LEX
-
BOS
1 stop7h 29m
Delta
Deal found 7/3$343
This Delta deal was found by Cheapflights users on 7/3. 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 10/234:00 pm
BOS
-
LEX
1 stop7h 04m
Delta
Sun 10/257:59 pm
LEX
-
BOS
1 stop4h 59m
Delta
Deal found 7/3$345
This Delta deal was found by Cheapflights users on 7/5. 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 8/145:30 am
BOS
-
LEX
1 stop4h 41m
Delta
Mon 8/177:05 am
LEX
-
BOS
1 stop4h 18m
Delta
Deal found 7/5$346
This American Airlines deal was found by Cheapflights users on 7/3. 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 7/2310:49 am
BOS
-
LEX
1 stop5h 54m
American Airlines
Sun 7/265:01 pm
LEX
-
BOS
1 stop6h 48m
American Airlines
Deal found 7/3$362
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 10/211:01 am
BOS
-
LEX
1 stop9h 16m
Allegiant Air
Mon 10/59:50 am
LEX
-
BOS
2 stops24h 52m
Allegiant Air
Deal found 7/6$373
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 7/238:00 am
BOS
-
LEX
1 stop7h 01m
Delta
Sat 7/255:55 pm
LEX
-
BOS
1 stop6h 04m
Delta
Deal found 7/7$379

Find flight deals from Boston to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Lexington (LEX). 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 July 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)

One-way from

$143
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$438
Provider with most accurate pricing for Boston Logan Intl-Lexington Blue Grass flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Lexington Blue Grass flights.
Search Deals
From Boston Logan Intl to Lexington Blue Grass
Search Deals
One-way flight from Boston Logan Intl to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 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 July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Lexington 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 8, 2026.
Use the filters below to find and compare flights from Boston to Lexington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 9/11

5:01 pm-12:05 am

1 stop7h 04m

Lexington Blue Grass

Sat 9/12

7:00 am-12:50 pm

1 stop5h 50m

$309

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 8/5

5:30 am-12:11 pm

1 stop6h 41m

Lexington Blue Grass

Sun 8/9

6:00 am-11:40 am

1 stop5h 40m

$343

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 10/23

4:00 pm-11:04 pm

1 stop7h 04m

Lexington Blue Grass

Sun 10/25

7:59 pm-12:58 am

1 stop4h 59m

$345
Quickest round-trip

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 9/17

5:40 am-9:59 am

1 stop4h 19m

Lexington Blue Grass

Mon 9/21

4:00 pm-9:31 pm

1 stop5h 31m

$345

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 7/31

5:30 am-10:11 am

1 stop4h 41m

Lexington Blue Grass

Sat 8/1

5:56 pm-11:36 pm

1 stop5h 40m

$345

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 8/3

5:30 am-10:11 am

1 stop4h 41m

Lexington Blue Grass

Mon 8/10

7:05 am-1:21 pm

1 stop6h 16m

$345

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 7/24

4:30 pm-10:04 pm

1 stop5h 34m

Lexington Blue Grass

Sun 7/26

6:00 am-10:41 am

1 stop4h 41m

$379

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 10/14

5:45 am-12:09 pm

1 stop6h 24m

Lexington Blue Grass

Sun 10/18

7:59 pm-12:58 am

1 stop4h 59m

$380

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Sat 8/29

9:30 am-8:28 pm

2 stops10h 58m

Lexington Blue Grass

Wed 9/2

9:52 am-5:36 pm

1 stop7h 44m

$394
Cheapest one-way

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 9/2

3:30 pm-11:55 pm

1 stop8h 25m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Boston to Lexington

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 Boston to Lexington in July.
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 Boston-Lexington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Lexington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Lexington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Lexington 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 Boston-Lexington 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 Boston to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Boston 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 Boston to Lexington

What is the cheapest month to book a flight from Boston to Lexington?

Currently, September is the cheapest month in which you can book a flight from Boston to Lexington (average of $278). Flying from Boston to Lexington in August is currently the most expensive (average of $503). 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.

How much does it cost to fly round-trip from Boston to Lexington?

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. 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 Lexington. Reviews last updated July 8, 2026.
Read through reviews of airlines operating flights from Boston to Lexington, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,451 reviews

Overall

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Delta
7.8
Good
8,451 reviews
Delta
7.8
Good
8,451 reviews

Overall

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
United Airlines
7.4
Good
9,948 reviews
Delta
7.8
Good
8,451 reviews

Overall

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
American Airlines
7.1
Good
11,783 reviews
Delta
7.8
Good
8,451 reviews

Overall

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

Find useful and relevant information for your journey from Boston to Lexington. 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 Boston to Lexington?

    United Airlines and Delta can get you from Boston to Lexington in just under 6h 41m. Your travel time can differ by up to 23m. Airlines will cover a distance of 776 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Lexington round-trip?

    Our cheapest airline available from Boston to Lexington is American Airlines. Our recent data shows that you can find tickets from as low as $248 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $248 and $248 round-trip. American Airlines is 38% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Lexington one-way?

    The cheapest airlines for a one-way flight from Boston to Lexington are United Airlines ($124), American Airlines ($125), and Delta ($139).

  • Can I find deals for flights from Boston to Lexington that include hotel bookings?

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

  • How can I find direct flights from Boston to Lexington?

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

  • Can I find deals for business class flights from Boston to Lexington?

    Yes. Cheapflights offers flight deals from Boston to Lexington 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 Boston to Lexington?

    Currently, September is the cheapest month in which you can book a flight from Boston to Lexington (average of $278). Flying from Boston to Lexington in August is currently the most expensive (average of $503). 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 Lexington?

Book flights to Lexington if you plan to visit one of these locations
Somerset
Richmond
Danville
Berea
Frankfort
Georgetown

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 Boston to Lexington

Discover the top 3 airlines that operate flights from Boston to Lexington. 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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$479FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$407FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$373FlexibilityNo cancel feeOn-timeN/A

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.