Route guide · 220 miles
Cheap Flights from Islip to Baltimore
ISP → BWI · Nonstop 0h 57m · Live round-trip fares
Plenty of travelers price out Islip to Baltimore every day — here's how to beat the average fare. Nonstops run about 0h 57m, and the calendar matters more than the airline. Aim to book 2–4 weeks ahead, stay flexible on the day of the week, and set a free alert so a price drop never slips past you.
Live fares for ISP → BWI are updating. Use the search below for real-time prices.
Search live pricesCheapest recent fare
See live fares
Updated daily
Flight time
0h 57m
Nonstop, typical
Distance
220 mi
ISP → BWI
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from Islip to Baltimore
Want to skip the layover? Nonstops from Islip to Baltimore are flown by Southwest Airlines, getting you there in about 0h 57m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Islip → Baltimore
- Distance: 220 miles · nonstop flight time: 0h 57m.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Free fare alerts
Watch Islip (ISP) → Baltimore (BWI)
We check this route's fares daily. The moment the price drops, we'll email you — free, unsubscribe anytime.
Talk to a real person
Get Islip → Baltimore flights confirmed by phone
Fares move fast. Call us and we'll confirm the latest price for your dates — or drop your number and we'll call you back. Free, no payment taken on the call.
Request a callback
Flying from Islip to Baltimore: what you need to know
The flight
Islip to Baltimore is a short hop — 220 miles, about 0h 57m gate to gate on a nonstop. You'll spend almost as long taxiing and boarding as you will in the air, so the real time-saver on this route is picking flight times that dodge rush hour at both ends.
Airlines on this route
Southwest Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Islip (ISP)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Islip airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Baltimore (BWI)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Baltimore airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Baltimore to Islip fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 220 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 0h 57m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
Islip to Baltimore flight FAQs
How long is the flight from ISP to BWI?
Nonstop flights from Islip to Baltimore take about 0h 57m and cover roughly 220 miles. One-stop itineraries add 2–4 hours depending on the layover city.
Are there nonstop flights from Islip to Baltimore?
Yes — look for Southwest Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Islip to Baltimore?
Travelers usually find the gentlest prices away from peak periods — think post-holiday January and the early-fall weeks. Midweek dates inside those windows are cheaper still.
How much are last minute flights from ISP to BWI?
Last-minute flights from ISP to BWI (booked within 7 days of departure) typically cost noticeably more than fares booked 2–4 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Islip to Baltimore?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Islip to Baltimore?
The main carriers on this route are Southwest Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Islip airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
More cheap flights from Islip
How Airfare Deal works — Airfare Deal is a free fare-search and enquiry service. We take no payment online; send an enquiry and our travel team confirms your fare before you pay anything.