Frontier adds 2 more intra-Caribbean routes from fast-growing Puerto Rico base
Frontier Airlines is getting set to launch two new intra-Caribbean routes this summer as part of a significant scaling up of its service from San Juan, Puerto Rico.
Between mid-June and early July, the Denver-based ultra-low-cost carrier will launch new nonstop service from Luis Muñoz Marín International Airport (SJU) to Cibao International Airport (STI) in Santiago de los Caballeros, Dominican Republic, and to Grantley Adams International Airport (BGI) in Barbados.
Here’s a look at the schedule and frequencies for the new routes:
| Route | Launches | Frequency |
|---|---|---|
SJU-STI | June 14 | Three weekly round trips |
SJU-BGI | July 3 | Three weekly round trips |
Frontier continues San Juan growth
This series of route announcements is just the latest case of Frontier bolstering its footprint in San Juan, where it recently opened a crew base.

Even prior to these two routes, the carrier was set to grow its scheduled seats from San Juan by 38% this summer, according to data from aviation analytics firm Cirium.
That’s helped contribute to overall seat growth from San Juan topping 10% this summer.
Map watching: The award for 'sexiest new route' of the year goes to ...
The market is among those Frontier has honed in on in an effort to woo passengers booking trips to visit friends and relatives.
The new San Juan service to Barbados and Santiago will give Frontier a total of eight routes within the Caribbean and Latin America.

Frontier already has — or is planning — service between San Juan and Cancun, St. Thomas and St. Croix in the U.S. Virgin Islands, Punta Cana and Santo Domingo in the Dominican Republic, and Sint Maarten.
Another head-to-head with a ‘Big Three’ carrier
Frontier also announced a new route within the contiguous United States that will launch this summer. Starting July 3, it will launch nonstop service from Charlotte Douglas International Airport (CLT) to Miami International Airport (MIA).
Amid a massive network shake-up in the early months of 2024, Frontier has shown a willingness to fly between the hubs of the largest U.S. carriers, and this route — which will see it take on American Airlines — is no exception.
Still, the three-times-weekly service between the two southeast hubs pales in comparison to the 492 flights American will operate between Charlotte and Miami in July alone, per Cirium.
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There’s a lot to love about the Amex Gold. It’s a fan favorite thanks to its fantastic bonus-earning rates at restaurants worldwide and at U.S. supermarkets. If you’re hitting the skies soon, you’ll also earn bonus Membership Rewards points on travel. Paired with up to $120 in Uber Cash annually (for U.S. Uber rides or Uber Eats orders, card must be added to Uber app and you can redeem with any Amex card), up to $120 in annual dining statement credits to be used with eligible partners, an up to $84 Dunkin’ credit each year at U.S. Dunkin Donuts and an up to $100 Resy credit annually, there’s no reason that foodies shouldn’t add the Amex Gold to their wallet. These benefits alone are worth more than $400, which offsets the $325 annual fee on the Amex Gold card. Enrollment is required for select benefits. (Partner offer)Pros
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- 3 points per dollar spent on flights booked directly with the airline or with amextravel.com
- Packed with credits foodies will enjoy
- Solid welcome bonus
Cons
- Not as useful for those living outside the U.S.
- Some may have trouble using Uber and other dining credits
- You may be eligible for as high as 100,000 Membership Rewards® Points after you spend $6,000 in eligible purchases on your new Card in your first 6 months of Card Membership. Welcome offers vary and you may not be eligible for an offer. Apply to know if you’re approved and find out your exact welcome offer amount – all with no credit score impact. If you’re approved and choose to accept the Card, your score may be impacted.
- Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
- Earn 3X Membership Rewards® points per dollar spent on flights booked directly with airlines or on AmexTravel.com.
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- $120 Uber Cash on Gold: Add your Gold Card to your Uber account and get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an American Express Card for your transaction. That’s up to $120 Uber Cash annually. Plus, after using your Uber Cash, use your Card to earn 4X Membership Rewards® points for Uber Eats purchases made with restaurants or U.S. supermarkets. Point caps and terms apply.
- $84 Dunkin' Credit: With the $84 Dunkin' Credit, you can earn up to $7 in monthly statement credits after you enroll and pay with the American Express® Gold Card at U.S. Dunkin' locations. Enrollment is required to receive this benefit.
- $100 Resy Credit: Get up to $100 in statement credits each calendar year after you pay with the American Express® Gold Card to dine at U.S. Resy restaurants or make other eligible Resy purchases. That's up to $50 in statement credits semi-annually. Enrollment required.
- $120 Dining Credit: Satisfy your cravings, sweet or savory, with the $120 Dining Credit. Earn up to $10 in statement credits monthly when you pay with the American Express® Gold Card at Grubhub, The Cheesecake Factory, Goldbelly, Wine.com, and Five Guys. Enrollment required.
- Explore over 1,000 upscale hotels worldwide with The Hotel Collection and receive a $100 credit towards eligible charges* with every booking of two nights or more through AmexTravel.com. *Eligible charges vary by property.
- No Foreign Transaction Fees.
- Annual Fee is $325.
- Terms Apply.

