BOS - LEX

$170 Find Cheap Flights from Boston to Lexington - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$339
Typical prices: $326-$503
American Airlines
Mon 2/26Thu 3/1
BOS - LEX • 1 stop
Cheapest one-way
$170
Typical prices: $269-$464
American Airlines
Mon 11/26
BOS - LEX • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Lexington. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 21% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Detroit Metropolitan Wayne County (DTW)
Cheapest • Avg $361 (round-trip)
New York LaGuardia (LGA)
Shortest trip • 4h 47m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Boston to Lexington (BOS-LEX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Lexington

Fri, Feb 26 - Mon, Mar 1
American Airlines Logo
7:13 am - 3:25 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
8h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
11:17 am - 6:49 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
7h 32m1 stop Chicago O'Hare Intl
$339American Airlines
Thu, Dec 31 - Mon, Jan 4
American Airlines Logo
3:07 pm - 11:31 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
8h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
5:05 am - 12:57 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
7h 52m1 stop Chicago O'Hare Intl
$339American Airlines
Thu, Dec 24 - Tue, Dec 29
Delta Logo
4:50 pm - 9:17 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
4h 27m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:55 pm - 1:10 amLEX  Lexington Blue Grass-BOS Boston Logan Intl
5h 15m1 stop Atlanta Hartsfield-Jackson
$339Delta
Fri, Nov 20 - Sat, Dec 5
Delta Logo
5:30 am - 9:53 amBOS  Boston Logan Intl-LEX Lexington Blue Grass
4h 23m1 stop Detroit Metropolitan Wayne County
Delta Logo
2:10 pm - 7:21 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
5h 11m1 stop New York LaGuardia
$339Delta
Thu, Nov 26 - Fri, Dec 25
United Airlines Logo
9:12 am - 5:30 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
8h 18m1 stop Chicago O'Hare Intl
United Airlines Logo
1:55 pm - 9:59 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
8h 04m1 stop Chicago O'Hare Intl
$339United Airlines
Thu, Nov 19 - Wed, Dec 2
United Airlines Logo
1:29 pm - 7:10 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
5h 41m1 stop Chicago O'Hare Intl
United Airlines Logo
1:45 pm - 9:53 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
8h 08m1 stop Chicago O'Hare Intl
$339United Airlines
Sun, Nov 22 - Wed, Dec 2
Delta Logo
6:45 am - 11:49 amBOS  Boston Logan Intl-LEX Lexington Blue Grass
5h 04m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:00 pm - 9:31 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
5h 31m1 stop New York LaGuardia
$339Delta
Wed, Nov 25 - Fri, Nov 27
United Airlines Logo
6:36 pm - 11:54 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
5h 18m1 stop Chicago O'Hare Intl
United Airlines Logo
6:15 pm - 12:46 amLEX  Lexington Blue Grass-BOS Boston Logan Intl
6h 31m1 stop Chicago O'Hare Intl
$339United Airlines
Thu, Nov 26 - Fri, Dec 25
American Airlines Logo
6:00 am - 5:09 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
11h 09m2 stops Philadelphia Chicago O'Hare Intl
American Airlines Logo
5:05 am - 12:57 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
7h 52m1 stop Chicago O'Hare Intl
$344American Airlines
Tue, Dec 29 - Mon, Jan 4
American Airlines Logo
5:29 pm - 11:46 pmBOS  Boston Logan Intl-LEX Lexington Blue Grass
6h 17m1 stop Chicago O'Hare Intl
American Airlines Logo
5:05 am - 12:57 pmLEX  Lexington Blue Grass-BOS Boston Logan Intl
7h 52m1 stop Chicago O'Hare Intl
$365American Airlines
Booking Insights

Price, demand and travel trends for Boston to Lexington flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Lexington?

Round-trip flights from Boston to Lexington typically range from $326 to $503. The lowest price found in the past 5 days was $339, on American Airlines.

What's the cheapest day of the week to fly from Boston to Lexington?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Boston to Lexington. It’s 16% cheaper than the average day, while Monday is the most expensive, with prices 71% higher.

What’s the cheapest month to fly from Boston to Lexington?

•November is the cheapest month to fly from Boston to Lexington at $318 round-trip.
•February ($566) and June ($487) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 77% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Boston to Lexington flights

Low season

August

Cheapest flight

$170
Beat the crowds with an average 15% drop in travelers.
The most popular month to fly with an average 23% increase in travelers.
One-way flight from Boston to Lexington

When to book flights from Boston to Lexington

Are your dates flexible? Find out the best times to travel from Boston to Lexington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Lexington flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Boston to Lexington?

    These are the earliest and latest flight times available from Boston to Lexington:

    • Earliest: departs at 9:00 am and lands at 11:38 am
    • Latest: departs at 10:06 am and lands at 12:44 pm.

    The flight takes about 2h 38m.

  • What cabin classes can I book on flights from Boston to Lexington?

    Only Economy Class is available on flights from Boston to Lexington.

  • How long is a flight from Boston to Lexington?

    A nonstop flight from Boston to Lexington takes 2h 38m, covering 776 miles.

  • Do I need a passport to fly from Boston to Lexington?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Boston to Lexington flight?

    Round-trip flights from Boston to Lexington range from $326 to $503, with an average of $403 over the past 12 months. Anything below $326 counts as a good deal.

  • How much can I save by taking a layover when flying from Boston to Lexington?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $361 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $691 for nonstop.

  • What is the standard checked-bag allowance on flights from Boston to Lexington?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $100–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Have flight prices from Boston to Lexington changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $339 to $1,202. That means the highest observed fare was about 4x higher than the lowest one.

  • Which airlines offer Wi-Fi on Boston to Lexington flights?

    American Airlines is the only airline on the Boston to Lexington route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Boston to Lexington looking right now?

    One-way fares from Boston to Lexington are currently higher than usual. Average one-way flight prices are about $435, which is 19% above the typical average for this route.

  • What car rental options are available at Lexington Blue Grass Airport (LEX)?

    Lexington Blue Grass Airport (LEX) hosts 5 major car rental companies, with daily rates averaging $81 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Alamo
    • Budget
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from Boston to Lexington?

    Flights from Boston to Lexington usually depart from Boston Logan Intl (BOS) and arrive at Lexington Blue Grass (LEX).

  • Which airports do connecting flights from Boston to Lexington pass through?

    One-stop flights from Boston to Lexington most commonly connect through:

    • Charlotte Douglas (CLT) - 31% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 19% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 17% of one-stop connections
    • Philadelphia (PHL) - 17% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Lexington?

    Yes. Flexible dates can save you up to 52% on flights from Boston to Lexington. Friday is the cheapest departure day at $339 round-trip on average, while Monday is the most expensive at $693, a difference of $354.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Boston to Lexington?

    Only American Airlines operates flights between Boston and Lexington.

  • How much time can I save by choosing a different layover airport from Boston to Lexington?

    Flying via New York LaGuardia (LGA) gives the shortest average 1-stop total travel time at 4h 47m, compared with 5h 02m via Charlotte Douglas (CLT) and 5h 04m via Detroit Metropolitan Wayne County (DTW).

  • Which airlines offer extra legroom and free seat selection on Boston to Lexington flights?

    Among airlines operating Boston to Lexington flights:

    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Boston to Lexington flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Boston to Lexington flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Monday. On this route, Friday flights average $339, about $354 less than Monday fares (51% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boston to Lexington trip for November. Fares historically average $318 round-trip in that month - typically $248 less than the most expensive month, which is February (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Detroit Metropolitan Wayne County Airport (DTW) can be cheaper than flying direct. The cheapest layover option averages $361 round-trip on this route - about $330 less than direct flights (based on the last 12 months).

More options for your flight from Boston to Lexington

Complete your trip to Lexington with a hotel stay or car rental

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