SJU - BWI

$78 Find Cheap Flights from San Juan Airport to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Luis Munoz Marin Intl to Baltimore departing on 2/18. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Baltimore, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Baltimore, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$143
Overall average: $193
Spirit Airlines
Tue 2/10Tue 2/17
SJU - BWI • Non-stop
Cheapest one-way
$78
Typical prices: $107-$259
Spirit Airlines
Wed 2/18
SJU - BWI • 1 stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest offers two free checked bags for economy.
Use the light rail from BWI for easy downtown access.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
March
Cheapest • 27% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Baltimore!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Luis Munoz Marin Intl to Baltimore (SJU-BWI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Luis Munoz Marin Intl to Baltimore 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 Luis Munoz Marin Intl to Baltimore

Tue, Feb 10 - Tue, Feb 17
Spirit Airlines Logo
9:29 pm - 12:41 am
SJU
-
BWI
4h 12mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$143Spirit Airlines
Tue, Feb 10 - Tue, Feb 17
Spirit Airlines Logo
9:29 pm - 12:41 am
SJU
-
BWI
4h 12mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$144Spirit Airlines
Fri, Feb 6 - Sat, Feb 7
Spirit Airlines Logo
9:29 pm - 12:41 am
SJU
-
BWI
4h 12mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$145Spirit Airlines
Thu, Feb 12 - Wed, Feb 18
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$146Spirit Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
9:29 pm - 12:41 am
SJU
-
BWI
4h 12mnonstop
Multiple Airlines Logo
7:54 pm - 9:54 am
BWI
-
SJU
13h 00m
1 stop
$155Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
Spirit Airlines Logo
4:36 pm - 11:31 pm
SJU
-
BWI
7h 55m
1 stop
Spirit Airlines Logo
4:45 pm - 10:17 am
BWI
-
SJU
16h 32m
1 stop
$156Spirit Airlines
Fri, Feb 20 - Sat, Feb 28
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$158Spirit Airlines
Wed, Feb 4 - Wed, Feb 11
Spirit Airlines Logo
4:40 pm - 11:36 pm
SJU
-
BWI
7h 56m
1 stop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$159Spirit Airlines
Thu, Feb 19 - Mon, Feb 23
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$160Spirit Airlines
Thu, Feb 12 - Mon, Feb 16
Spirit Airlines Logo
9:11 pm - 12:20 am
SJU
-
BWI
4h 09mnonstop
Spirit Airlines Logo
6:00 am - 10:47 am
BWI
-
SJU
3h 47mnonstop
$161Spirit Airlines
Booking Insights

KAYAK's insights & trends for Luis Munoz Marin Intl to Baltimore flights

Get data-powered insights and trends into flights from Luis Munoz Marin Intl to Baltimore to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Juan Airport to Baltimore?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Baltimore clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Juan Airport to Baltimore, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Baltimore, Monday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Baltimore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Baltimore, 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 San Juan Luis Munoz Marin Intl Airport to Baltimore is March, where tickets cost $170 (return) on average. On the other hand, the most expensive months are November and September, where the average cost of round-trip tickets is $290 and $287 respectively.

Can I save money by flying with a layover from San Juan Luis Munoz Marin Intl Airport to Baltimore?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $227, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to Baltimore?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Baltimore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to Baltimore, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Luis Munoz Marin Intl to Baltimore

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Spirit Airlines

Upgrade to Big Front Seat for 20-inch width and 11” extra legroom.


Access gate-to-gate Wi-Fi for uninterrupted connectivity throughout your flight.

Frontier

Choose the Economy Bundle for a carry-on bag and seat selection, avoiding extra fees.


Opt for Premium Bundle for priority boarding and extra legroom at a reasonable price.

Southwest

Southwest's Rapid Rewards offers unlimited rewards seats and no blackout dates, maximizing travel flexibility.


Southwest's Wi-Fi allows streaming and messaging; download the app for onboard entertainment.

Airports
SJU

For late-night departures, stock up on food before arriving at SJU, as most shops and restaurants close early.

BWI

Use the light rail for a cost-effective trip from BWI to downtown Baltimore, with a station just outside the terminal.

Our travel experts
Joe Cortez

Joe Cortez

Expert on Spirit Airlines

Joe Cortez

Joe Cortez

Joe Cortez is a seasoned managing editor in aviation with over a decade of industry experience. His work has been featured on prominent platforms such as FlyerTalk and TripSavvy, establishing him as a respected voice in aviation journalism.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on BWI

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low seasonJanuary
Cheapest flight$75
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 7% increase in price.
Flight from San Juan Airport to Baltimore

When to book flights from Luis Munoz Marin Intl to Baltimore

Are your dates flexible? Find out the best times to travel from Luis Munoz Marin Intl to Baltimore 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 San Juan Airport to Baltimore flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Baltimore?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Baltimore was $78 for a one-way ticket and $143 for a round-trip.

  • Do I need a passport to fly between San Juan Airport and Baltimore?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan Airport and on arrival in Baltimore.

  • Which airlines offer Wi-Fi service onboard planes from San Juan Airport to Baltimore?

    JetBlue, Delta, American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the San Juan Airport to Baltimore flight route.

  • Which aircraft models fly most regularly from San Juan Airport to Baltimore?

    The Airbus A321neo is the aircraft model that flies most regularly on the San Juan Airport to Baltimore flight route.

  • Which airline alliances offer flights from San Juan Airport to Baltimore?

    Star Alliance, and oneworld are the airline alliances operating flights between San Juan Airport and Baltimore, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Juan Airport to Baltimore?

    There are nonstop flights from San Juan Airport to Baltimore on a daily basis.

  • Which is the best airline for flights from San Juan to Baltimore, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Juan to Baltimore are Southwest and United Airlines. With an average price for the route of $479 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $288 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Juan Airport to Baltimore?

    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 San Juan Airport to Baltimore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Juan Airport to Baltimore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from San Juan Airport 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 San Juan Airport to Baltimore?

    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 Baltimore with an airline and back to San Juan Airport with another airline. Booking your flights between San Juan Airport and BWI 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 San Juan Airport to Baltimore?

    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 Baltimore from San Juan Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Juan Luis Munoz Marin Intl Airport to Baltimore

  • Looking for a cheap flight? 25% of our users found flights on this route for $176 or less one-way and $170 or less round-trip.

Prefer to fly direct from San Juan Airport to Baltimore?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Juan Luis Munoz Marin Intl to Baltimore/Washington.
Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Baltimore/Washington Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Baltimore/Washington

Monday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Saturday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Sunday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

See more direct flights

Direct returns

Baltimore/Washington to San Juan Luis Munoz Marin Intl

Monday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Tuesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Wednesday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Thursday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

Friday

Southwest, Spirit Airlines, Frontier

Southwest, Spirit Airlines, +1 more

Saturday

Frontier, Southwest, Spirit Airlines

Frontier, Southwest, +1 more

Sunday

Southwest, Spirit Airlines

Southwest, Spirit Airlines

See more direct flights

Reviews of the top 5 airlines serving from Luis Munoz Marin Intl to Baltimore

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Baltimore. 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 Luis Munoz Marin Intl to Baltimore? 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.
8.0
SouthwestOverall score based on 4258 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

We got exit row seats both flights. Everything was running on time

Never went on board this flight. Kayak uses Underpricer (which is a scam business) as it's "customer service provider". This customer service is a classic bait and switch "service". I Got caught in the UnderPricer Bait and switch scam. 14 hours on the phone with people from India with heavy accents and upselling me to useless products. The original sell was a flight on spirit. Then they contact me later, an say after they have my money that the flight is no good as is is only one seat for a party of two. I am still in dispute to get my money back. Went to Spirit direct and had a beautiful vacation. I should never have used Kayak and their rip off artists UnderPricer.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

l really enjoy very much the flight was very pleasant

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Little warm on the plane and delayed for an hour

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Bags took over and hour to come out. Delays due to wind caused rebooking.

Services, food products, and crew friendliness on American Airlines international flights is mediocre compared to Emirates, Qatar, and Singapore Airways. American does not do much to differentiate its product on international routes. Its menu options are similar on international flights. American Airlines flight attendants do not call elite frequent travelers by their names; American Airlines flight attendants do not seem to be motivated to go above and beyond in the service they provide. American Airlines personnel do not seem to take pride in their work.

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

I was originally scheduled on AA 1763. When I landed in Miami, I went to the counter for flight AA 2115 to try to move my flight to this one. I was in a first class seat on AA 1763. While they moved to me this flight, I was told that there were no other 1st class seats available and they assigned me into coach. However, when I was getting off the plane I noticed that one of the pilots who was also in line to go jump seat - somehow miraculously got a 1st class seat on this flight. It is actually infuriating that I had a paid 1st class seat yet somehow they would move an AA employee ahead of that. At a bare minimum, they should have compensated me for the fare difference and I really think paying customers should ALWAYs get the premiere seats.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Flight was cancelled with very little notice. Had to scramble to find transportation to my Mexico vacation.

Liked early boarding for disabled customers. Seat comfort could have been better, would have appreciated an empty seat between my wife and I since I suffer from arthritis, neuropathy, and spinal stenosis. Also aisle seat armrest was immobile and this made it difficult to get into and out of my seat during the flight

The flights were very uncomfortable the seats don't have much leg room at all and they are pretty hard as well.

It was delayed but the landing was the smoothest in a while that I’ve had.

Our outgoing flight was cancelled two hours before boarding and Spirit was not able to get us onto another flight. Their customer service was slow and unhelpful.

Terrible. I never made my trip to Puerto Rico and my layover flight from IAH to MCO was delayed over 3 hours and made me miss my connecting flight. I spend 2 days in an airport just to have to go back to Houston. This was a trip for my birthday and I lost money on this trip. I understand the situation with Venezuela affected flights but it’s always something with Spirit.

Every Spirit flight we took was delayed by nearly 2 hours. We arrived in MCO and learned that our connection had been canceled. There were no options for rebooking for 4 days. No hotel vouchers provided, no transportation etc. The airline essentially stranded us, and rhe passengers from 6 other flights hours from our destinations with no assistance. Still no word on my refund. Terrible customer service.

AWFUL THEY CANCELED MY FLIGHT LESS THAN 12 HOURS BEFORE AND GAVE NO WAY TO GET A REFUND OR BOOK A NEW FLIGHT. THEN HAD THE AUDACITY TO GIVE ME A $30 VOUCHER ON A $500 FLIGHT

We had too many delays for the crew not the plane

Absolute disaster. Was delayed, delayed again, then delayed while loaded, causing many to miss connecting flights. However, spirit had only one person to process over 20 missed flights, taking forever. They then provided little guidance. No wonder they are bankrupt

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.

Everything you need to know for your flight from Luis Munoz Marin Intl to Baltimore

Information on your arrival and departure airports