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$100+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LEX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$100
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$278
From Boston Logan Intl to Lexington Blue Grass
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One-way flight from Boston Logan Intl to Lexington Blue Grass
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Highest demand for flights based on searches. 13% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 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 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/315:24 amBOS - LEX
1 stop5h 18mAmerican Airlines
Thu 11/65:00 amLEX - BOS
1 stop4h 56mAmerican Airlines
Deal found 9/16$225
This Delta deal was found by Cheapflights users on 9/15. 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 10/145:34 amBOS - LEX
1 stop4h 11mDelta
Sat 10/181:14 pmLEX - BOS
1 stop8h 01mDelta
Deal found 9/15$249
This Delta deal was found by Cheapflights users on 9/14. 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 11/275:29 amBOS - LEX
1 stop4h 35mDelta
Wed 12/310:32 amLEX - BOS
1 stop5h 28mDelta
Deal found 9/14$250
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/295:30 amBOS - LEX
2 stops7h 47mUnited Airlines
Sat 11/110:40 amLEX - BOS
1 stop6h 34mUnited Airlines
Deal found 9/15$254
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/306:15 pmBOS - LEX
1 stop5h 44mUnited Airlines
Sat 10/46:01 pmLEX - BOS
1 stop6h 49mUnited Airlines
Deal found 9/14$259
This Delta deal was found by Cheapflights users on 9/14. 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 11/275:29 amBOS - LEX
1 stop4h 35mDelta
Thu 12/46:14 amLEX - BOS
1 stop8h 48mDelta
Deal found 9/14$273
This Delta deal was found by Cheapflights users on 9/14. 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 11/245:29 amBOS - LEX
1 stop4h 25mDelta
Wed 12/310:32 amLEX - BOS
1 stop5h 28mDelta
Deal found 9/14$275
This Delta deal was found by Cheapflights users on 9/15. 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 9/245:35 amBOS - LEX
1 stop6h 40mDelta
Mon 9/297:53 pmLEX - BOS
1 stop5h 25mDelta
Deal found 9/15$284
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 9/2512:59 pmBOS - LEX
2 stops31h 16mMultiple Airlines
Fri 10/39:49 pmLEX - BOS
1 stop15h 59mMultiple Airlines
Deal found 9/16$285
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 10/166:16 amBOS - LEX
1 stop12h 19mMultiple Airlines
Sun 10/197:25 pmLEX - BOS
1 stop16h 01mMultiple Airlines
Deal found 9/16$288

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 September 17, 2025.
Use the filters below to find and compare flights from Boston to Lexington that are best for you.

Fly from

Boston

Fly to

Lexington

Route

Depart

Return

Price

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 10/15

5:24 am-10:42 am

1 stop5h 18m

Lexington Blue Grass

Sat 10/18

11:12 am-6:35 pm

1 stop7h 23m

$249

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 10/30

5:34 am-9:45 am

1 stop4h 11m

Lexington Blue Grass

Mon 11/3

5:57 pm-1:13 am

1 stop7h 16m

$249

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Tue 10/14

6:12 pm-11:15 pm

1 stop5h 03m

Lexington Blue Grass

Sat 10/18

5:59 pm-11:00 pm

1 stop5h 01m

$249

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Tue 10/7

5:34 am-9:45 am

1 stop4h 11m

Lexington Blue Grass

Tue 10/14

5:54 pm-11:49 pm

1 stop5h 55m

$249

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 11/27

5:29 am-10:04 am

1 stop4h 35m

Lexington Blue Grass

Tue 12/2

6:12 pm-11:54 pm

1 stop5h 42m

$250

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 11/27

5:29 am-10:04 am

1 stop4h 35m

Lexington Blue Grass

Thu 12/4

6:14 am-3:02 pm

1 stop8h 48m

$273

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Tue 10/14

5:34 am-9:45 am

1 stop4h 11m

Lexington Blue Grass

Sat 10/18

5:48 pm-11:49 pm

1 stop6h 01m

$274

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 11/24

5:29 am-9:54 am

1 stop4h 25m

Lexington Blue Grass

Wed 12/3

10:32 am-4:00 pm

1 stop5h 28m

$275

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 9/25

9:53 am-3:48 pm

1 stop5h 55m

Lexington Blue Grass

Fri 10/3

7:33 pm-12:50 am

1 stop5h 17m

$284

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 10/16

6:16 am-6:35 pm

1 stop12h 19m

Lexington Blue Grass

Sun 10/19

7:25 pm-11:26 am

1 stop16h 01m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
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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, August is the cheapest month in which you can book a flight from Boston to Lexington (average of $303). Flying from Boston to Lexington in April is currently the most expensive (average of $390). 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.

What is the cheapest time of day to fly from BOS to LEX?

Find hourly flight availability from Boston to Lexington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from Boston to Lexington at noon. Doing so could potentially save you 10% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 September 17, 2025.
Read through reviews of airlines operating flights from Boston to Lexington, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

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 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?

    American Airlines and Delta can get you from Boston to Lexington in just under 4h 11m. Your travel time can differ by up to 1h 07m. 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. An additional option worth looking into is Delta, starting at $248. American Airlines is 49% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, August is the cheapest month in which you can book a flight from Boston to Lexington (average of $303). Flying from Boston to Lexington in April is currently the most expensive (average of $390). 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
Georgetown
Berea
Frankfort

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Top 2 airlines flying from Boston to Lexington

Discover the top 2 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$480FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$476FlexibilityNo cancel feeOn-time71%

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