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Cheap flights from Boston to Lexington from $146

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Lexington departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Boston to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:40 pm - 10:46 pm
BOS
-
LEX
5h 06m
1 stop
American Airlines Logo
4:27 pm - 12:25 am
LEX
-
BOS
7h 58m
1 stop
$291American Airlines
Sat, Apr 25 - Sat, May 2
United Airlines Logo
10:05 am - 8:24 pm
BOS
-
LEX
10h 19m
2 stops
United Airlines Logo
7:50 pm - 12:59 am
LEX
-
BOS
5h 09m
1 stop
$296United Airlines
Sat, Apr 25 - Sat, May 2
United Airlines Logo
5:45 am - 1:13 pm
BOS
-
LEX
7h 28m
2 stops
United Airlines Logo
7:00 am - 4:36 pm
LEX
-
BOS
9h 36m
2 stops
$301United Airlines
Sat, Apr 25 - Sat, May 2
United Airlines Logo
6:48 pm - 11:59 pm
BOS
-
LEX
5h 11m
1 stop
United Airlines Logo
7:50 pm - 12:59 am
LEX
-
BOS
5h 09m
1 stop
$310United Airlines
Fri, Apr 24 - Sat, May 2
United Airlines Logo
6:48 pm - 11:59 pm
BOS
-
LEX
5h 11m
1 stop
United Airlines Logo
7:00 am - 4:36 pm
LEX
-
BOS
9h 36m
2 stops
$315United Airlines
Fri, Apr 24 - Sat, May 2
Multiple Airlines Logo
11:27 am - 7:56 pm
BOS
-
LEX
8h 29m
1 stop
Multiple Airlines Logo
9:37 am - 9:29 am
LEX
-
BOS
23h 52m
1 stop
$321Multiple Airlines
Fri, May 29 - Sun, May 31
Multiple Airlines Logo
10:25 am - 8:55 pm
BOS
-
LEX
10h 30m
1 stop
Multiple Airlines Logo
9:37 am - 9:29 am
LEX
-
BOS
23h 52m
1 stop
$325Multiple Airlines
Mon, May 18 - Thu, May 21
Delta Logo
6:30 pm - 11:14 pm
BOS
-
LEX
4h 44m
1 stop
Delta Logo
8:19 pm - 1:23 am
LEX
-
BOS
5h 04m
1 stop
$329Delta
Mon, May 4 - Mon, May 11
Delta Logo
5:30 am - 9:48 am
BOS
-
LEX
4h 18m
1 stop
Delta Logo
7:56 pm - 1:22 am
LEX
-
BOS
5h 26m
1 stop
$334Delta
Wed, Apr 8 - Mon, Apr 13
Multiple Airlines Logo
10:25 am - 8:55 pm
BOS
-
LEX
10h 30m
1 stop
Multiple Airlines Logo
9:45 pm - 9:12 am
LEX
-
BOS
11h 27m
1 stop
$336Multiple Airlines
Mon, May 4 - Fri, May 8

American Airlines flights from Boston to Lexington

Our best American Airlines deals on Boston to Lexington flight tickets
American Airlines
Apr 25
BOS5:40 pmBoston Logan Intl
5h 06m
1 stop
LEX10:46 pmLexington Blue Grass
May 2
LEX4:27 pmLexington Blue Grass
7h 58m
1 stop
BOS12:25 amBoston Logan Intl
$291
American Airlines
Mar 27
BOS4:50 pmBoston Logan Intl
5h 28m
1 stop
LEX10:18 pmLexington Blue Grass
Apr 1
LEX5:07 pmLexington Blue Grass
6h 58m
1 stop
BOS12:05 amBoston Logan Intl
$369
American Airlines
May 23
BOS5:05 amBoston Logan Intl
5h 37m
1 stop
LEX10:42 amLexington Blue Grass
May 25
LEX5:40 amLexington Blue Grass
4h 21m
1 stop
BOS10:01 amBoston Logan Intl
$384

United Airlines flights from Boston to Lexington

Our best United Airlines deals on Boston to Lexington flight tickets
United Airlines
Apr 25
BOS10:05 amBoston Logan Intl
10h 19m
2 stops
LEX8:24 pmLexington Blue Grass
May 2
LEX7:50 pmLexington Blue Grass
5h 09m
1 stop
BOS12:59 amBoston Logan Intl
$296
United Airlines
Apr 25
BOS5:45 amBoston Logan Intl
7h 28m
2 stops
LEX1:13 pmLexington Blue Grass
May 2
LEX7:00 amLexington Blue Grass
9h 36m
2 stops
BOS4:36 pmBoston Logan Intl
$301
United Airlines
Apr 24
BOS6:48 pmBoston Logan Intl
5h 11m
1 stop
LEX11:59 pmLexington Blue Grass
May 2
LEX7:50 pmLexington Blue Grass
5h 09m
1 stop
BOS12:59 amBoston Logan Intl
$310

momondo 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, momondo users made 832,500 searches. Data last updated March 22, 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

Sat 4/25

5:40 pm-10:46 pm

1 stop5h 06m

Lexington Blue Grass

Sat 5/2

4:27 pm-12:25 am

1 stop7h 58m

$291

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Sat 4/25

10:05 am-8:24 pm

2 stops10h 19m

Lexington Blue Grass

Sat 5/2

7:50 pm-12:59 am

1 stop5h 09m

$296

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Sat 4/25

5:45 am-1:13 pm

2 stops7h 28m

Lexington Blue Grass

Sat 5/2

7:00 am-4:36 pm

2 stops9h 36m

$301

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 4/24

6:48 pm-11:59 pm

1 stop5h 11m

Lexington Blue Grass

Sat 5/2

7:50 pm-12:59 am

1 stop5h 09m

$310

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 4/24

6:48 pm-11:59 pm

1 stop5h 11m

Lexington Blue Grass

Sat 5/2

7:00 am-4:36 pm

2 stops9h 36m

$315

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 5/29

11:27 am-7:56 pm

1 stop8h 29m

Lexington Blue Grass

Sun 5/31

9:37 am-9:29 am

1 stop23h 52m

$321

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 5/18

10:25 am-8:55 pm

1 stop10h 30m

Lexington Blue Grass

Thu 5/21

9:37 am-9:29 am

1 stop23h 52m

$325

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 5/4

6:30 pm-11:14 pm

1 stop4h 44m

Lexington Blue Grass

Mon 5/11

8:19 pm-1:23 am

1 stop5h 04m

$329
Quickest round-trip

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 4/8

5:30 am-9:48 am

1 stop4h 18m

Lexington Blue Grass

Mon 4/13

7:56 pm-1:22 am

1 stop5h 26m

$334

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 5/4

10:25 am-8:55 pm

1 stop10h 30m

Lexington Blue Grass

Fri 5/8

9:45 pm-9:12 am

1 stop11h 27m

$336

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lexington from

How to get the cheapest flight ticket from Boston to Lexington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Lexington?

What is the cheapest month to fly to Lexington?

In general, September is the cheapest month to fly from Boston to Lexington. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $291. If you are unable to visit Lexington during the month of September, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around $339.

How have Boston to Lexington flight prices changed over time?

As of March 2026, prices for Boston to Lexington flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Lexington

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Lexington according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Lexington (BOS to LEX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Lexington

Fastest flight time

4h 18m

Direct flights

None
The fastest flight from Boston to Lexington takes 4h 18m
There are no direct flights from Boston to Lexington. There are no popular flight routes from Boston to Lexington.
Search flight deals

  • How far is Boston Logan Intl to Lexington Blue Grass by plane?

    The straight-line distance from Boston Logan Intl to Lexington Blue Grass is 768.1 mi. Typically, this will take 4h 18m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Lexington Blue Grass Airport?

    Prices for flights from Boston Logan Intl Airport to Lexington Blue Grass Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Lexington Blue Grass Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Lexington Blue Grass Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Lexington Blue Grass Airport.

  • What documentation or ID do you need to fly to Lexington Blue Grass Airport?

    The required travel and health documents for your Lexington Blue Grass Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lexington Blue Grass Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boston to Lexington?

Best airlines flying from Boston to Lexington

Compare and see reviews for airlines that fly from Boston to Lexington with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,455 reviews
Search United Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,314 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights

Traveling to a place near Lexington?

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

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Lexington?

It is quick and easy to find Boston to Lexington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Lexington that suits you.

Can I find flights from Boston to Lexington with flexible booking policies on momondo?

Flights from Boston to Lexington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Lexington?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Lexington.

I’m not ready to book a flight from Boston to Lexington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to Lexington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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