BOS - LEX

$157 Find Cheap Flights from Boston to Lexington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Lexington departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$319
Typical prices: $258-$328
American Airlines
Fri 9/25Sun 9/27
BOS - LEX • 1 stop
Cheapest one-way
$157
Typical prices: $279-$449
Allegiant Air
Fri 10/30
BOS - LEX • 1 stop
Top airlines
Cheapest • from $319 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Lexington. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $319 (round-trip)
Shortest trip • 4h 33m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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We hope you love your trip to Lexington!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Lexington (BOS-LEX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Lexington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Lexington

Fri, Sep 25 - Sun, Sep 27
American Airlines Logo
4:29 pm - 11:46 pm
BOS
-
LEX
7h 17m
1 stop
American Airlines Logo
5:23 am - 10:29 am
LEX
-
BOS
5h 06m
1 stop
$319American Airlines
Fri, Sep 25 - Sun, Sep 27
American Airlines Logo
4:29 pm - 11:46 pm
BOS
-
LEX
7h 17m
1 stop
American Airlines Logo
5:23 am - 10:29 am
LEX
-
BOS
5h 06m
1 stop
$319American Airlines
Wed, Sep 23 - Mon, Sep 28
Delta Logo
6:50 am - 2:46 pm
BOS
-
LEX
7h 56m
1 stop
Delta Logo
12:40 pm - 6:00 pm
LEX
-
BOS
5h 20m
1 stop
$319Delta
Thu, Sep 17 - Sun, Sep 20
Delta Logo
5:30 am - 11:44 am
BOS
-
LEX
6h 14m
1 stop
Delta Logo
10:08 am - 2:51 pm
LEX
-
BOS
4h 43m
1 stop
$319Delta
Fri, Sep 4 - Sun, Sep 6
United Airlines Logo
3:30 pm - 11:55 pm
BOS
-
LEX
8h 25m
1 stop
United Airlines Logo
7:00 am - 2:07 pm
LEX
-
BOS
7h 07m
1 stop
$319United Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
5:01 pm - 11:55 pm
BOS
-
LEX
6h 54m
1 stop
United Airlines Logo
7:00 am - 2:07 pm
LEX
-
BOS
7h 07m
1 stop
$319United Airlines
Wed, Sep 23 - Mon, Sep 28
American Airlines Logo
11:57 am - 5:31 pm
BOS
-
LEX
5h 34m
1 stop
American Airlines Logo
5:23 am - 12:39 pm
LEX
-
BOS
7h 16m
1 stop
$319American Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
2:28 pm - 11:55 pm
BOS
-
LEX
9h 27m
2 stops
United Airlines Logo
1:51 pm - 7:19 pm
LEX
-
BOS
5h 28m
1 stop
$324United Airlines
Mon, Oct 5 - Sat, Oct 10
Multiple Airlines Logo
12:54 pm - 10:30 am
BOS
-
LEX
21h 36m
2 stops
Multiple Airlines Logo
6:10 pm - 8:20 am
LEX
-
BOS
14h 10m
1 stop
$367Multiple Airlines
Sun, Oct 4 - Sat, Oct 10
Multiple Airlines Logo
9:04 am - 7:09 pm
BOS
-
LEX
34h 05m
2 stops
Multiple Airlines Logo
6:10 pm - 8:20 am
LEX
-
BOS
14h 10m
1 stop
$372Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Lexington flights

Get data-powered insights and trends into flights from Boston to Lexington to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Lexington departing in August.

Flight prices are below average for this route right now.

Flights to Lexington from Boston usually cost between $369 and $733 in August.
The lowest price found in the past 5 days was $319 on Delta (Aug 18-Aug 28).

What is the cheapest month to fly from Boston to Lexington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Lexington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Lexington is September, where tickets cost $278 (return) on average. On the other hand, the most expensive months are August and April, where the average cost of round-trip tickets is $503 and $487 respectively.

Good to know

Low season

February

Cheapest flight

$157
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 7% increase in price.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Lexington

  • What is the cheapest flight from Boston to Lexington?

    In the last 5 days, the lowest price for a flight from Boston to Lexington was $157 for a one-way ticket and $319 for a round-trip.

  • Do I need a passport to fly between Boston and Lexington?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Lexington?

    Only American Airlines offers inflight Wi-Fi service on the Boston to Lexington flight route.

  • Which aircraft models fly most regularly from Boston to Lexington?

    The Embraer 175 is the aircraft model that flies most regularly on the Boston to Lexington flight route.

  • Which airline alliances offer flights from Boston to Lexington?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boston and Lexington, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Lexington, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Lexington are Delta and United Airlines. With an average price for the route of $367 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $440 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Boston to Lexington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Lexington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Lexington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lexington from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Lexington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lexington with an airline and back to Boston with another airline. Booking your flights between Boston and LEX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Lexington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lexington from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Lexington

 
See real verified KAYAK customer reviews for airlines flying from Boston to Lexington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Lexington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8497 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.8Comfort
7.2Food
Airline reviews

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

2.0 MediocreBruce, Jul 2026
BOS - LGA
Read more Delta reviews

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

It is usually very pleasant. Good service for the price, international flights are even better

Flight attendant was very poor in taking care or showing attention. I slept up front for a few and missed the snacks. She saw me many times, went by me many times and never once asked if I needed anything. The whole 2 hours flight. And this is to a Diamond member in first.

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

The flight was delayed, they didn’t even have water for the toilets or for drinks

It’s always a great time flying with united airlines.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

They have overselled the ticket and kicked me out from boarding, All my Plans were collapsed and important network meeting missed.also I booked direct flight i have to go through an 1 stop and it was frustrated.

Horrific. We were delayed due a flight attendant stuck in traffic en route to the airport. Over 100 people were then stuck in Charolette. Then I ran to make my layover only to find that my connection didn’t have a plane anymore. Waited 2.5 hours without any updates. On the flight we had to beg for even a pretzel option.

Terrible boarding and first class experience. Nice staff but overall disorganized, dirty plane.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

Boston ticket agent Cheryl Porter is WONDERFUL. Our Iberia flight to Barcelona was cancelled the morning we were scheduled to leave and Cheryl was our super hero - she found us seats on a flight to London and on to Barcelona. Truly a “can-do” attitude which we appreciated so much after the Iberia ticket agents told us there was “absolutely nothing they could do”. (As did the customer service agents at Iberia’s call center) Ms Porter is truly a wonderful person who genuinely cares about travelers!

I was not given the option to get on a different flight even though I was going to miss my connection due to weather delays (I did). When I called early in the morning, they said it wasn't delayed long enough; though I knew it would be by the time it was time for the flight ... it was and by that time it was too late. I wasn't given the option to pre-board with my toddler, and the food service was less than normal due to delays .... at least that's what the crew said.

American is a steady for me. I always get what I expect from them. Sincere effort to get me from one place to another.

Sat on the tarmac for a good half hour before take off

Everything you need to know for your flight from Boston to Lexington

Information on your arrival and departure airports