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Cheap flights from Boston to Lexington from $155

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 7/11. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:30 pm - 11:55 pm
BOS
-
LEX
8h 25m
1 stop
United Airlines Logo
6:15 pm - 1:14 am
LEX
-
BOS
6h 59m
1 stop
$309United Airlines
Fri, Aug 21 - Mon, Aug 24
United Airlines Logo
3:30 pm - 11:55 pm
BOS
-
LEX
8h 25m
2 stops
United Airlines Logo
6:15 pm - 1:14 am
LEX
-
BOS
6h 59m
1 stop
$314United Airlines
Fri, Aug 21 - Mon, Aug 24
United Airlines Logo
5:45 am - 1:16 pm
BOS
-
LEX
7h 31m
2 stops
United Airlines Logo
7:00 am - 2:50 pm
LEX
-
BOS
7h 50m
2 stops
$319United Airlines
Fri, Aug 28 - Wed, Sep 9
United Airlines Logo
6:00 am - 1:20 pm
BOS
-
LEX
7h 20m
1 stop
United Airlines Logo
5:55 pm - 1:14 am
LEX
-
BOS
7h 19m
1 stop
$324United Airlines
Sat, Jul 4 - Mon, Jul 6
United Airlines Logo
2:30 pm - 11:59 pm
BOS
-
LEX
9h 29m
2 stops
United Airlines Logo
1:55 pm - 7:30 pm
LEX
-
BOS
5h 35m
1 stop
$329United Airlines
Fri, Jul 3 - Tue, Jul 7
Allegiant Air Logo
12:34 pm - 8:21 pm
BOS
-
LEX
7h 47m
1 stop
Allegiant Air Logo
3:28 pm - 11:44 am
LEX
-
BOS
20h 16m
1 stop
$338Allegiant Air
Thu, Oct 8 - Sat, Oct 10
Delta Logo
6:00 pm - 11:10 pm
BOS
-
LEX
5h 10m
1 stop
Delta Logo
3:54 pm - 9:39 pm
LEX
-
BOS
5h 45m
1 stop
$341Delta
Tue, Jul 21 - Tue, Jul 28
Delta Logo
3:00 pm - 10:11 pm
BOS
-
LEX
7h 11m
1 stop
Delta Logo
3:54 pm - 9:39 pm
LEX
-
BOS
5h 45m
1 stop
$377Delta
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
7:19 am - 1:20 pm
BOS
-
LEX
6h 01m
1 stop
United Airlines Logo
5:55 pm - 1:14 am
LEX
-
BOS
7h 19m
1 stop
$388United Airlines
Sat, Jul 11 - Mon, Jul 13
United Airlines Logo
10:38 am - 5:35 pm
BOS
-
LEX
6h 57m
1 stop
United Airlines Logo
6:15 pm - 11:34 pm
LEX
-
BOS
5h 19m
1 stop
$389United Airlines
Wed, Sep 2 - Sat, Sep 5

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Delta flights from Boston to Lexington

Our best Delta deals on Boston to Lexington flight tickets
Delta
Jul 21
BOS6:00 pmBoston Logan Intl
5h 10m
1 stop
LEX11:10 pmLexington Blue Grass
Jul 28
LEX3:54 pmLexington Blue Grass
5h 45m
1 stop
BOS9:39 pmBoston Logan Intl
$341
Delta
Jul 3
BOS3:00 pmBoston Logan Intl
7h 11m
1 stop
LEX10:11 pmLexington Blue Grass
Jul 7
LEX3:54 pmLexington Blue Grass
5h 45m
1 stop
BOS9:39 pmBoston Logan Intl
$377
Delta
Jul 31
BOS6:00 pmBoston Logan Intl
5h 10m
1 stop
LEX11:10 pmLexington Blue Grass
Aug 1
LEX1:02 pmLexington Blue Grass
7h 58m
1 stop
BOS9:00 pmBoston Logan Intl
$394

United Airlines flights from Boston to Lexington

Our best United Airlines deals on Boston to Lexington flight tickets
United Airlines
Aug 21
BOS3:30 pmBoston Logan Intl
8h 25m
1 stop
LEX11:55 pmLexington Blue Grass
Aug 24
LEX6:15 pmLexington Blue Grass
6h 59m
1 stop
BOS1:14 amBoston Logan Intl
$309
United Airlines
Aug 21
BOS3:30 pmBoston Logan Intl
8h 25m
2 stops
LEX11:55 pmLexington Blue Grass
Aug 24
LEX6:15 pmLexington Blue Grass
6h 59m
1 stop
BOS1:14 amBoston Logan Intl
$314
United Airlines
Aug 28
BOS5:45 amBoston Logan Intl
7h 31m
2 stops
LEX1:16 pmLexington Blue Grass
Sep 9
LEX7:00 amLexington Blue Grass
7h 50m
2 stops
BOS2:50 pmBoston Logan Intl
$319

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 June 17, 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 8/21

3:30 pm-11:55 pm

1 stop8h 25m

Lexington Blue Grass

Mon 8/24

6:15 pm-1:14 am

1 stop6h 59m

$309

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 8/21

3:30 pm-11:55 pm

2 stops8h 25m

Lexington Blue Grass

Mon 8/24

6:15 pm-1:14 am

1 stop6h 59m

$314

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 8/28

5:45 am-1:16 pm

2 stops7h 31m

Lexington Blue Grass

Wed 9/9

7:00 am-2:50 pm

2 stops7h 50m

$319

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Sat 7/4

6:00 am-1:20 pm

1 stop7h 20m

Lexington Blue Grass

Mon 7/6

5:55 pm-1:14 am

1 stop7h 19m

$324

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 7/3

2:30 pm-11:59 pm

2 stops9h 29m

Lexington Blue Grass

Tue 7/7

1:55 pm-7:30 pm

1 stop5h 35m

$329

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 10/8

12:34 pm-8:21 pm

1 stop7h 47m

Lexington Blue Grass

Sat 10/10

3:28 pm-11:44 am

1 stop20h 16m

$338
Quickest round-trip

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Tue 7/21

6:00 pm-11:10 pm

1 stop5h 10m

Lexington Blue Grass

Tue 7/28

3:54 pm-9:39 pm

1 stop5h 45m

$341

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 7/3

3:00 pm-10:11 pm

1 stop7h 11m

Lexington Blue Grass

Tue 7/7

3:54 pm-9:39 pm

1 stop5h 45m

$377

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Sat 7/11

7:19 am-1:20 pm

1 stop6h 01m

Lexington Blue Grass

Mon 7/13

5:55 pm-1:14 am

1 stop7h 19m

$388

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 9/2

10:38 am-5:35 pm

1 stop6h 57m

Lexington Blue Grass

Sat 9/5

6:15 pm-11:34 pm

1 stop5h 19m

$389

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 $278. If you are unable to visit Lexington during the month of September, then departing from Boston during the month July is also very affordable. Most momondo users find prices during this month for around $313.

How have Boston to Lexington flight prices changed over time?

As of June 2026, prices for Boston to Lexington flights are approximately 57% 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 50m

Direct flights

Fri

Airports in Lexington

1 airport
The fastest flight from Boston to Lexington takes 4h 50m
Direct flights go from Boston to Lexington on Friday. There are no airlines offering direct flights.
There is 1 airport in Lexington. From Boston there are direct flights to Lexington Blue Grass (LEX).
Search flight deals

Frequently asked questions about flying from Boston to Lexington

  • 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 50m 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
9,845 reviews
Search United Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.8
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.1
11,670 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
Georgetown
Somerset
Frankfort
Danville
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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