traveling to Mexico City with i-551 stamp (ir-1 visa) but wanting to leave from Tijuana airport...Help!!

[Isa&Sam 50]

Hello all! My husband was approved for the ir-1 visa in El Salvador 1/29/18, he entered on 2/9/2018 through LAX and had his Salvadoran passport stamped (i-551 stamp) and I know that this stamp serves as his temp "green card" per say. My question is, can he travel into Mexico (Tijuana) from San Diego and catch a flight from Tijuana airport to Mexico City? We want to save some money and book to travel from Tijuana to MExico city rather than leaving from LAX which is about 500-600 dollar difference. But my husbands friend told him that while he awaits his green card, anytime he travels outside of the US, upon returning he needs to make sure he gets a seal in his passport to verify that he did return to the US otherwise he might have problems. IDK what to do. What agency can I call to get answers??

[Crazy Cat 41,903]

56 minutes ago, Isa&Sam said:

Hello all! My husband was approved for the ir-1 visa in El Salvador 1/29/18, he entered on 2/9/2018 through LAX and had his Salvadoran passport stamped (i-551 stamp) and I know that this stamp serves as his temp "green card" per say. My question is, can he travel into Mexico (Tijuana) from San Diego and catch a flight from Tijuana airport to Mexico City? We want to save some money and book to travel from Tijuana to MExico city rather than leaving from LAX which is about 500-600 dollar difference. But my husbands friend told him that while he awaits his green card, anytime he travels outside of the US, upon returning he needs to make sure he gets a seal in his passport to verify that he did return to the US otherwise he might have problems. IDK what to do. What agency can I call to get answers??

His IR-1 stamped passport acts as his his Green Card until the actual plastic green card arrives.....Don't worry....