Jet Blue — and the Internet — really came through for this jilted bridesmaid.

MBA Dartmouth Business School candidate Courtney Duffy suddenly no longer needed to fly cross-country to a wedding after her so-called “pal,” the bride, axed her from the bridal party lineup at the last minute.

So Duffy took to Twitter to vent her frustration and beg Jet Blue to refund her the price of two “X-C,” or cross-country, tickets.

She tweeted her “SOS” to @JetBlue on Friday.

“Booked my X-C flights for a wedding, then was asked ‘to relinquish’ my “duties as a bridesmaid,’” Duffy tweeted. The bride even gallingly asked Duff to mail back her bridesmaid outfit — a jumpsuit! — “so another girl could fill in and wear it,” Duff added.

“I am laughing & crying & must avoid this wedding at all costs. Pls help?”

The airline responded with a voucher and a waiving of cancellation fees; meanwhile, the ‘Net responded with sympathy.

“Bridezilla” one supporter sniffed. “Bridesmaids are wearing jumpsuits?” raged another.

“Wow, did not expect this response,” Duffy tweeted Saturday.

“Weddings have gotten totally out of control … I’m hoping this threat reminds future lovebirds and bridal parties to keep their feet on the ground :)”