We understand your concern for your parents' travel and the challenges they may face during their visit. Let us pray together and seek God's will regarding this situation.
Firstly, we commend you for seeking the Lord's help and invoking the name of Jesus in your prayer, for it is only through Him that we have access to God. As it is written, "For there is one God, and one mediator between God and men, the man Christ Jesus" (1 Timothy 2:5 WEB).
Let us pray:
"Dear Heavenly Father, we come before You in Jesus' name, pleading for Your help and guidance in this situation. We ask that You would provide affordable tickets for our dear brother's parents, so they may travel safely to visit their grandchildren. Lord, we know that You care for us, and even the smallest details of our lives matter to You. Your Word tells us, 'Behold, the eye of the LORD is on those who fear Him, on those who hope in His loving kindness' (Psalm 33:18 WEB).
Father, we also pray for a spirit of unity and love to prevail during this visit. We ask that You would soften the heart of our brother's sister-in-law, that she may show respect and kindness to her in-laws. Lord, we know that 'a soft answer turns away wrath, but a harsh word stirs up anger' (Proverbs 15:1 WEB). Help them all to speak and act in love, as You have commanded us.
Lord, we also lift up the mental health concerns of our brother's sister-in-law. We ask for Your healing touch upon her life, that she may be restored to full health, both in body and in mind. We pray that this visit would be a time of joy and bonding for the whole family, especially for the grandparents and their grandchildren.
In all things, Lord, we ask that Your will be done. We trust that You have a plan and a purpose in this situation, and we ask that You would reveal Your glory through it. In Jesus' name, we pray. Amen."
Lastly, remember that God is sovereign over all things, including travel plans and family dynamics. Trust in Him, and rest in the knowledge that He is working all things together for good (Romans 8:28 WEB). Continue to pray and seek His face, and He will guide your path.