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Cheap flights from Boston to Lexington from $125

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 12/25. 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
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.
Multiple Airlines Logo
7:00 am - 8:40 pm
BOS
-
LEX
13h 40m1 stop
Multiple Airlines Logo
9:30 pm - 11:10 am
LEX
-
BOS
13h 40m1 stop
$231Multiple Airlines
Mon, Jan 12 - Fri, Jan 16
Multiple Airlines Logo
7:00 am - 8:40 pm
BOS
-
LEX
13h 40m1 stop
Multiple Airlines Logo
9:30 pm - 5:44 pm
LEX
-
BOS
20h 14m2 stops
$238Multiple Airlines
Fri, Jan 16 - Mon, Jan 19
Delta Logo
5:29 am - 9:59 am
BOS
-
LEX
4h 30m1 stop
Delta Logo
6:40 pm - 1:04 am
LEX
-
BOS
6h 24m1 stop
$239Delta
Thu, Jan 15 - Mon, Jan 19
Delta Logo
5:29 am - 9:59 am
BOS
-
LEX
4h 30m1 stop
Delta Logo
10:40 am - 3:57 pm
LEX
-
BOS
5h 17m1 stop
$251Delta
Wed, Jan 7 - Sat, Jan 10
Multiple Airlines Logo
7:00 am - 8:40 pm
BOS
-
LEX
13h 40m1 stop
Multiple Airlines Logo
9:30 pm - 2:38 pm
LEX
-
BOS
17h 08m1 stop
$260Multiple Airlines
Fri, Jan 16 - Mon, Jan 19
Delta Logo
7:45 am - 2:56 pm
BOS
-
LEX
7h 11m1 stop
Delta Logo
6:55 am - 1:22 pm
LEX
-
BOS
6h 27m1 stop
$264Delta
Thu, Jan 1 - Mon, Jan 5
American Airlines Logo
12:56 pm - 5:53 pm
BOS
-
LEX
4h 57m1 stop
American Airlines Logo
4:35 pm - 10:22 pm
LEX
-
BOS
5h 47m1 stop
$269American Airlines
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
6:01 am - 1:16 pm
BOS
-
LEX
7h 15m1 stop
United Airlines Logo
5:48 pm - 12:45 am
LEX
-
BOS
6h 57m1 stop
$279United Airlines
Fri, Jan 2 - Mon, Jan 5
United Airlines Logo
5:20 am - 1:16 pm
BOS
-
LEX
7h 56m2 stops
United Airlines Logo
5:48 pm - 12:45 am
LEX
-
BOS
6h 57m1 stop
$284United Airlines
Fri, Jan 2 - Mon, Jan 5
American Airlines Logo
5:53 am - 10:30 am
BOS
-
LEX
4h 37m1 stop
American Airlines Logo
10:13 pm - 3:39 am
LEX
-
BOS
5h 26m1 stop
$299American Airlines
Fri, Jan 2 - Sun, Jan 4

Delta flights from Boston to Lexington

Our best Delta deals on Boston to Lexington flight tickets
Delta
Jan 15
BOS5:29 amBoston Logan Intl
4h 30m
1 stop
LEX9:59 amLexington Blue Grass
Jan 19
LEX6:40 pmLexington Blue Grass
6h 24m
1 stop
BOS1:04 amBoston Logan Intl
$239
Find similar
Delta
Jan 1
BOS7:45 amBoston Logan Intl
7h 11m
1 stop
LEX2:56 pmLexington Blue Grass
Jan 5
LEX6:55 amLexington Blue Grass
6h 27m
1 stop
BOS1:22 pmBoston Logan Intl
$264
Find similar
Delta
Dec 24
BOS4:52 pmBoston Logan Intl
6h 15m
1 stop
LEX11:07 pmLexington Blue Grass
Jan 7
LEX6:55 amLexington Blue Grass
4h 25m
1 stop
BOS11:20 amBoston Logan Intl
$355
Find similar

American Airlines flights from Boston to Lexington

Our best American Airlines deals on Boston to Lexington flight tickets
American Airlines
Jan 30
BOS12:56 pmBoston Logan Intl
4h 57m
1 stop
LEX5:53 pmLexington Blue Grass
Feb 6
LEX4:35 pmLexington Blue Grass
5h 47m
1 stop
BOS10:22 pmBoston Logan Intl
$269
Find similar
American Airlines
Jan 2
BOS5:53 amBoston Logan Intl
4h 37m
1 stop
LEX10:30 amLexington Blue Grass
Jan 4
LEX10:13 pmLexington Blue Grass
5h 26m
1 stop
BOS3:39 amBoston Logan Intl
$299
Find similar
American Airlines
Dec 31
BOS4:36 pmBoston Logan Intl
6h 36m
1 stop
LEX11:12 pmLexington Blue Grass
Jan 4
LEX10:13 pmLexington Blue Grass
5h 26m
1 stop
BOS3:39 amBoston Logan Intl
$309
Find similar

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 December 18, 2025.
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

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Mon 1/12

7:00 am-8:40 pm

1 stop13h 40m

Lexington Blue Grass

Fri 1/16

9:30 pm-11:10 am

1 stop13h 40m

$231

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/16

7:00 am-8:40 pm

1 stop13h 40m

Lexington Blue Grass

Mon 1/19

9:30 pm-5:44 pm

2 stops20h 14m

$238

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 1/15

5:29 am-9:59 am

1 stop4h 30m

Lexington Blue Grass

Mon 1/19

6:40 pm-1:04 am

1 stop6h 24m

$239

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Wed 1/7

5:29 am-9:59 am

1 stop4h 30m

Lexington Blue Grass

Sat 1/10

10:40 am-3:57 pm

1 stop5h 17m

$251

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/16

7:00 am-8:40 pm

1 stop13h 40m

Lexington Blue Grass

Mon 1/19

9:30 pm-2:38 pm

1 stop17h 08m

$260

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Thu 1/1

7:45 am-2:56 pm

1 stop7h 11m

Lexington Blue Grass

Mon 1/5

6:55 am-1:22 pm

1 stop6h 27m

$264

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/30

12:56 pm-5:53 pm

1 stop4h 57m

Lexington Blue Grass

Fri 2/6

4:35 pm-10:22 pm

1 stop5h 47m

$269

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/2

6:01 am-1:16 pm

1 stop7h 15m

Lexington Blue Grass

Mon 1/5

5:48 pm-12:45 am

1 stop6h 57m

$279

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/2

5:20 am-1:16 pm

2 stops7h 56m

Lexington Blue Grass

Mon 1/5

5:48 pm-12:45 am

1 stop6h 57m

$284

BostonLexington

BOS - LEX

BOSLEX

Boston Logan Intl

Fri 1/2

5:53 am-10:30 am

1 stop4h 37m

Lexington Blue Grass

Sun 1/4

10:13 pm-3:39 am

1 stop5h 26m

$299

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 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 July is also very affordable. Most momondo users find prices during this month for around $354.

What is the cheapest day to depart on your flight to Lexington?

On average, the least expensive day to fly to Lexington from Boston is on a Saturday. momondo users have found tickets for Saturday departures for as low as $411. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $676.

What is the cheapest time of day to depart on your flight to Lexington?

The cheapest time of day to fly to Lexington is at noon when flights can be purchased for as low as $538. Try not to purchase tickets in the afternoon because they tend to be around $592. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Lexington?

You are more likely to see cheaper flights to Lexington from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Lexington for around $474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lexington from Boston for as low as $268 on momondo.

How have Boston to Lexington flight prices changed over time?

As of December 2025, prices for Boston to Lexington flights are approximately 21% cheaper 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 03m

Direct flights

None
The fastest flight from Boston to Lexington takes 4h 03m
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 03m 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
9,091 reviews
Search United Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,054 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
Carlisle
Versailles

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.

An easier way to manage your Lexington trip

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